A graphene quantum dots–glassy carbon electrode-based electrochemical sensor for monitoring malathion

• Sanju Tanwar,
• Aditi Sharma and
• Dhirendra Mathur

Beilstein J. Nanotechnol. 2023, 14, 701–710, doi:10.3762/bjnano.14.56

• hydrothermal process with glucose as a precursor undergoing carbonization. Different spectroscopic techniques were used to analyze the optical characteristics of GQDs, including UV–visible, photoluminescence, FTIR, and Raman spectroscopy. Atomic force microscopy, transmission electron microscopy, and X-ray

Bismuth-based nanostructured photocatalysts for the remediation of antibiotics and organic dyes

• Akeem Adeyemi Oladipo and
• Faisal Suleiman Mustafa

Beilstein J. Nanotechnol. 2023, 14, 291–321, doi:10.3762/bjnano.14.26

• ] prepared 1-D Bi2WO6 nanofibers with a flower-like morphology by using a hydrothermal process for the degradation of rhodamine B dye. Under visible-light irradiation, the 1-D nanofiber photocatalyst reached a degradation rate of 78.2% after 50 min. Because of their extraordinarily small size, 0-D

• . BiFeO3-graphene nanocomposites were made using a hydrothermal process by Lam and co-workers [177]. Under visible-light photocatalysis, the nanocomposite efficiently degraded Congo red dye. The improved performance was attributed to the altered bandgap between graphene oxide and BiFeO3. Table 9 provides a

Recent trends in Bi-based nanomaterials: challenges, fabrication, enhancement techniques, and environmental applications

• Vishal Dutta,
• Ankush Chauhan,
• Ritesh Verma,
• C. Gopalkrishnan and
• Van-Huy Nguyen

Beilstein J. Nanotechnol. 2022, 13, 1316–1336, doi:10.3762/bjnano.13.109

• research has shown that it is possible to generate H2 or reduce CO2 by carefully controlling the production procedure of ultrathin photocatalysts based on Bi. Compared to Bi2WO6 formed using a solid-state reaction, single-unit-cell layers of Bi2WO6, synthesized using a hydrothermal process, offered three

• photocatalysts. The hydrothermal process is one of the most frequent and widely utilized synthesis methods. Morphology, facets, size, surface flaws, and dimensionality of Bi-based photocatalysts are all susceptible to change when the synthesis conditions are altered. Generally, the hydrothermal technique yield a

Recent advances in green carbon dots (2015–2022): synthesis, metal ion sensing, and biological applications

• Aisha Kanwal,
• Naheed Bibi,
• Sajjad Hyder,
• Arif Muhammad,
• Hao Ren,
• Jiangtao Liu and
• Zhongli Lei

Beilstein J. Nanotechnol. 2022, 13, 1068–1107, doi:10.3762/bjnano.13.93

• for the synthesis of CDs via a hydrothermal method. The obtained CDs acted as fluorescence on-off-on sensors for the detection of Co2+ or Cr6+ ions and ascorbic acid, respectively [87]. Using a hydrothermal process, a new form of CD material was produced from common crop wastes, such as corn straw

Nanoarchitectonics of the cathode to improve the reversibility of Li–O₂ batteries

• Hien Thi Thu Pham,
• Jonghyeok Yun,
• So Yeun Kim,
• Sang A Han,
• Jung Ho Kim,
• Jong-Won Lee and
• Min-Sik Park

Beilstein J. Nanotechnol. 2022, 13, 689–698, doi:10.3762/bjnano.13.61

• using Zn and Co acetates, together with 2-methylimidazolate, as described in Figure 1a. The hydrothermal process is beneficial for facilitating the nucleation and growth of bimetallic ZIF as well as reducing the synthesis time. The chemical composition of ZnxCoy particles was controlled by adjusting the

Self-standing heterostructured NiC_x-NiFe-NC/biochar as a highly efficient cathode for lithium–oxygen batteries

• Shengyu Jing,
• Xu Gong,
• Shan Ji,
• Linhui Jia,
• Bruno G. Pollet,
• Sheng Yan and
• Huagen Liang

Beilstein J. Nanotechnol. 2020, 11, 1809–1821, doi:10.3762/bjnano.11.163

• the previous literatures [40][41][42]. However, a hydrothermal process was introduced here as a new treatment step prior to the precursor calcination in order to modify the properties of the prepared electrode materials. Heterostructured NiCx-NiFe-NC derived from bimetallic Prussian blue supported on

Gram-scale synthesis of splat-shaped Ag–TiO₂ nanocomposites for enhanced antimicrobial properties

• Mohammad Jaber,
• Asim Mushtaq,
• Kebiao Zhang,
• Jindan Wu,
• Dandan Luo,
• Zihan Yi,
• M. Zubair Iqbal and
• Xiangdong Kong

Beilstein J. Nanotechnol. 2020, 11, 1119–1125, doi:10.3762/bjnano.11.96

• , magnetron sputtering, molecular precursor techniques and photo-deposition techniques have been applied to the preparation of nanocomposites [6][21][22]. However, these techniques are very sophisticated and not optimized for synthesis on a large scale. Herein, a simple hydrothermal process was employed to

Preparation, characterization and photocatalytic performance of heterostructured CuO–ZnO-loaded composite nanofiber membranes

• Wei Fang,
• Liang Yu and
• Lan Xu

Beilstein J. Nanotechnol. 2020, 11, 631–650, doi:10.3762/bjnano.11.50

• Hydrothermal process Preparation of growth solution: The growth solutions used in the hydrothermal process were obtained by preparing mixtures of C6H12N4, NH3·H2O, and a saturated aqueous solution of CuSO4 and ZnCl2. The saturated solution of CuSO4 and ZnCl2 was prepared by dissolving an excess of CuSO4 and

• for use in the hydrothermal process. Preparation of heterostructured CuO–ZnO-loaded CNFMs: The calcined CNFMs were fixed on glass sheets and put in four 50 mL reaction kettles that contained 10 mL of the above four growth solutions. After tightening the cover, the reaction kettles were placed in an

Soybean-derived blue photoluminescent carbon dots

• Shanshan Wang,
• Wei Sun,
• Dong-sheng Yang and
• Fuqian Yang

Beilstein J. Nanotechnol. 2020, 11, 606–619, doi:10.3762/bjnano.11.48

• to introduce N-surface-functional groups to carbon nanoparticles made from biomass and biowaste and to produce stable photoluminescent CDs with excellent water-wettability. Keywords: biomass; carbon dots; hydrothermal process; laser ablation; N-doping; photoluminescence; Introduction Carbon-based

• yield at ≈405 nm under 330 nm excitation. Meng et al. [32] synthesized green-emitting CDs by a hydrothermal process from soybean powder at 170 °C and obtained the highest quantum yield of 7.14% for the green-emitting CDs prepared with a processing time of 16 h. Considering the potential applications of

Identification of physicochemical properties that modulate nanoparticle aggregation in blood

• Ludovica Soddu,
• Duong N. Trinh,
• Eimear Dunne,
• Dermot Kenny,
• Giorgia Bernardini,
• Ida Kokalari,
• Arianna Marucco,
• Marco P. Monopoli and
• Ivana Fenoglio

Beilstein J. Nanotechnol. 2020, 11, 550–567, doi:10.3762/bjnano.11.44

• (CNPs) were produced starting from glucose using a one-step hydrothermal process as previously described by Kokalari et al. 2019 [24]. Briefly, glucose was dissolved in 50 mL of ultrapure water followed by the addition of 15 mg of sodium polyacrilate. The solution was introduced in a pressure reactor

Synthesis and enhanced photocatalytic performance of 0D/2D CuO/tourmaline composite photocatalysts

• Changqiang Yu,
• Min Wen,
• Zhen Tong,
• Shuhua Li,
• Yanhong Yin,
• Xianbin Liu,
• Yesheng Li,
• Tongxiang Liang,
• Ziping Wu and
• Dionysios D. Dionysiou

Beilstein J. Nanotechnol. 2020, 11, 407–416, doi:10.3762/bjnano.11.31

• nontoxic products. In this work, a CuO/tourmaline composite with zero-dimensional/two-dimensional (0D/2D) CuO architecture was successfully obtained via a facile hydrothermal process, and its photocatalytic activity was evaluated by the degradation of methylene blue (MB). Surface element valence state and

• functional mineral material for accepting the photogenerated e− due to its special electric field. Herein, we report the successful synthesis of the CuO/tourmaline composite photocatalyst with 0D/2D CuO geometric structure by a facile precipitation–hydrothermal process. This work firstly highlights a simple

• ., China. Photocatalyst synthesis A hydrothermal process was employed to synthesize the CuO/tourmaline composite. In detail, 0.50 g of the tourmaline powder and 40 mL of distilled water were added into a beaker followed by 20 min of magnetic stirring, and the obtained suspension was sonicated for 20 min to

Review of advanced sensor devices employing nanoarchitectonics concepts

• Katsuhiko Ariga,
• Tatsuyuki Makita,
• Masato Ito,
• Taizo Mori,
• Shun Watanabe and
• Jun Takeya

Beilstein J. Nanotechnol. 2019, 10, 2014–2030, doi:10.3762/bjnano.10.198

• composite of Co3O4 nanoparticles in black phosphorous thin films [86]. The composite structures were engineered by functionalization of black phosphorous nanosheets with branched polyethylenimine to which Co3O4 nanoparticles were included with a hydrothermal process. The sensor composite structures showed

A highly efficient porous rod-like Ce-doped ZnO photocatalyst for the degradation of dye contaminants in water

• Binjing Hu,
• Qiang Sun,
• Chengyi Zuo,
• Yunxin Pei,
• Siwei Yang,
• Hui Zheng and
• Fangming Liu

Beilstein J. Nanotechnol. 2019, 10, 1157–1165, doi:10.3762/bjnano.10.115

• decarboxylation. Generally, zinc oxide materials can be synthesized via a hydrothermal process [18], sol–gel method [19], microemulsion method [20], among others. Due to its narrow band, the application of zinc oxide is limited, thus it is common to modify ZnO using rare-earth ions [9]. Koao et al. [21

Fe₃O₄ nanoparticles as a saturable absorber for giant chirped pulse generation

• Ji-Shu Liu,
• Xiao-Hui Li,
• Abdul Qyyum,
• Yi-Xuan Guo,
• Tong Chai,
• Hua Xu and
• Jie Jiang

Beilstein J. Nanotechnol. 2019, 10, 1065–1072, doi:10.3762/bjnano.10.107

• analyzer (Rohde & Schwarz FSC6) is used to measure the signal-to-noise ratio of the pulse. There are many methods that can be employed for the synthesis of NPs, such as sol–gel, sol–hydrothermal, co-precipitate, or dry methods. Due to the homogeneity and the versatility of the product, a sol–hydrothermal

• process was utilized in these experiments. Figure 2a shows the detailed synthesis process of Fe3O4 nanoparticles. First of all, 20 mL of distilled water and 3.2 g FeCl2·4H2O are put into a beaker. The beaker then is placed onto a heating/mixing table and stirred at 500 rpm for 30 min. After a half of an

Nanostructure-induced performance degradation of WO₃·nH₂O for energy conversion and storage devices

• Zhenyin Hai,
• Mohammad Karbalaei Akbari,
• Zihan Wei,
• Danfeng Cui,
• Chenyang Xue,
• Hongyan Xu,
• Philippe M. Heynderickx,
• Francis Verpoort and
• Serge Zhuiykov

Beilstein J. Nanotechnol. 2018, 9, 2845–2854, doi:10.3762/bjnano.9.265

• layers of WO3·2H2O and WO3·H2O with only weak interlayer van der Waals forces. It is also noteworthy that at temperatures lower than 80 °C, neither WO3·2H2O nor WO3·H2O could be synthesized using the hydrothermal process presented in this work. Both experimental results and the theoretical models

Graphene-enhanced metal oxide gas sensors at room temperature: a review

• Dongjin Sun,
• Yifan Luo,
• Marc Debliquy and
• Chao Zhang

Beilstein J. Nanotechnol. 2018, 9, 2832–2844, doi:10.3762/bjnano.9.264

• . In a pioneering work, Lin et al. [78] demonstrated that SnO2–graphene (GN) hybrids fabricated via hydrothermal synthesis using GO and SnCl2 as precursors exhibited a 3D nanostructure with high specific surface area (94.9 m2/g). During the hydrothermal process, GO served as a template to promote the

Oriented zinc oxide nanorods: A novel saturable absorber for lasers in the near-infrared

• Pavel Loiko,
• Tanujjal Bora,
• Josep Maria Serres,
• Haohai Yu,
• Magdalena Aguiló,
• Francesc Díaz,
• Uwe Griebner,
• Valentin Petrov,
• Xavier Mateos and
• Joydeep Dutta

Beilstein J. Nanotechnol. 2018, 9, 2730–2740, doi:10.3762/bjnano.9.255

• a hydrothermal process [43]. A ZnO seed layer was initially deposited on cleaned glass slides by spraying 5 mM zinc acetate dehydrate solution in ethanol at 350 °C. The role of this seed layer was to provide nucleation sites for the subsequent growth of ZnO NRs. The seeded substrates were then

ZnO-nanostructure-based electrochemical sensor: Effect of nanostructure morphology on the sensing of heavy metal ions

• Marina Krasovska,
• Vjaceslavs Gerbreders,
• Irena Mihailova,
• Andrejs Ogurcovs,
• Eriks Sledevskis,
• Andrejs Gerbreders and
• Pavels Sarajevs

Beilstein J. Nanotechnol. 2018, 9, 2421–2431, doi:10.3762/bjnano.9.227

• selective dissolution of metastable ZnO planes with decreasing growth solution temperature, achieving a considerable Zn-ion deficiency during the hydrothermal process [19][20][21][22]. The synthesis of the ZnO nanotubes was performed in a growth solution with the same chemical composition as for synthesis

Hydrothermal-derived carbon as a stabilizing matrix for improved cycling performance of silicon-based anodes for lithium-ion full cells

• Mirco Ruttert,
• Florian Holtstiege,
• Jessica Hüsker,
• Markus Börner,
• Martin Winter and
• Tobias Placke

Beilstein J. Nanotechnol. 2018, 9, 2381–2395, doi:10.3762/bjnano.9.223

• 46, 48149 Münster, Germany 10.3762/bjnano.9.223 Abstract In this work, silicon/carbon composites are synthesized by forming an amorphous carbon matrix around silicon nanoparticles (Si-NPs) in a hydrothermal process. The intention of this material design is to combine the beneficial properties of

• ] showed that Si nanoparticles (Si-NPs) can be embedded in spherical hydrothermal carbon via a simple one-step hydrothermal process and Hu et al. [53] used hydrothermal carbonization to form a thin carbon and SiOx layer around Si-NPs and reported a great improvement in cycling stability compared to pure Si

• improved first cycle CEs and enhanced cycle life of the prelithiated electrodes in comparison to the non-prelithiated electrodes. In this work, we use a simple hydrothermal process, followed by a carbonization step to synthesize Si/C composites, in which Si-NPs are homogeneously dispersed within an

Electrospun one-dimensional nanostructures: a new horizon for gas sensing materials

• Muhammad Imran,
• Nunzio Motta and
• Mahnaz Shafiei

Beilstein J. Nanotechnol. 2018, 9, 2128–2170, doi:10.3762/bjnano.9.202

Synthesis of a MnO₂/Fe₃O₄/diatomite nanocomposite as an efficient heterogeneous Fenton-like catalyst for methylene blue degradation

• Zishun Li,
• Xuekun Tang,
• Kun Liu,
• Jing Huang,
• Yueyang Xu,
• Qian Peng and
• Minlin Ao

Beilstein J. Nanotechnol. 2018, 9, 1940–1950, doi:10.3762/bjnano.9.185

• , the plate-like morphology of diatomite is well preserved after the two-step loading process, revealing the negligible influence of the hydrothermal process on the structure of diatomite. In addition, Figure 3f and Figure 3g present SEM images of the MnO2/Fe3O4/diatomite composite and the corresponding

Sensing behavior of flower-shaped MoS₂ nanoflakes: case study with methanol and xylene

• Maryam Barzegar,
• Masoud Berahman and
• Azam Iraji zad

Beilstein J. Nanotechnol. 2018, 9, 608–615, doi:10.3762/bjnano.9.57

• methods have been applied to synthesize single or few-layered MoS2, including but not limited to mechanical cleavage, chemical exfoliation, hydrothermal synthesis and chemical vapor deposition [16][17][18][19][20][21][22][23]. The hydrothermal process is a scalable method to synthesize MoS2 nanosheets and

• emerging new group of materials known as transition metal dichalcogenides (TMDs), which have significant electrical, optical, and transport properties. MoS2 is one of the well-known 2D materials in this group, which is a semiconductor with controllable band gap based on its structure. The hydrothermal

• process is known as one of the scalable methods to synthesize MoS2 nanostructures. In this study, the gas sensing properties of flower-shaped MoS2 nanoflakes, which were prepared from molybdenum trioxide (MoO3) by a facile hydrothermal method, have been studied. Material characterization was performed

Green synthesis of fluorescent carbon dots from spices for in vitro imaging and tumour cell growth inhibition

• Nagamalai Vasimalai,
• Vânia Vilas-Boas,
• Juan Gallo,
• María de Fátima Cerqueira,
• Mario Menéndez-Miranda,
• José Manuel Costa-Fernández,
• Lorena Diéguez,
• Begoña Espiña and
• María Teresa Fernández-Argüelles

Beilstein J. Nanotechnol. 2018, 9, 530–544, doi:10.3762/bjnano.9.51

• simple, cost-effective and environmentally friendly hydrothermal process involved in the synthesis [14]. Among the wide variety of food products, common spices like cinnamon, red chilli, turmeric and black pepper have been studied in detail due to their traditionally known medicinal properties. For

• compounds present in the spices will partially remain inside or at the surface of the C-dots after the hydrothermal process, leading to different photoluminescent and biomedical properties. The synthesized C-dots have been extensively characterized with UV–vis, fluorescence, FTIR and Raman spectroscopy, DLS

Influence of the preparation method on the photocatalytic activity of Nd-modified TiO₂

• Patrycja Parnicka,
• Paweł Mazierski,
• Tomasz Grzyb,
• Wojciech Lisowski,
• Ewa Kowalska,
• Bunsho Ohtani,
• Adriana Zaleska-Medynska and
• Joanna Nadolna

Beilstein J. Nanotechnol. 2018, 9, 447–459, doi:10.3762/bjnano.9.43

• treatments in combination with the sol–gel method (sol–hydrothermal method) provide an alternative approach for preparing TiO2. During the preparation, before the hydrothermal process, a sol is obtained, which may prevent the agglomeration of the nanocrystals [26]. However, information regarding the

• significantly higher photocatalytic activity compared to Nd-TiO2 NPs prepared via sol–hydrothermal process. The photocatalyst prepared via HT method has three times more hydroxy groups on its surface layer and a two times higher amount of surface defects than the powder obtained by SHT method. According to the

Hydrothermal synthesis of ZnO quantum dot/KNb₃O₈ nanosheet photocatalysts for reducing carbon dioxide to methanol

• Xiao Shao,
• Weiyue Xin and
• Xiaohong Yin

Beilstein J. Nanotechnol. 2017, 8, 2264–2270, doi:10.3762/bjnano.8.226

• hydrothermal process for synthesizing KNb3O8 nanosheets was influenced by several factors. Among them, the concentration of the KOH solution, which is presented by the pH, is the critical factor [23]. Figure 1 shows the powder XRD patterns of the as-synthesized particles with different KOH concentrations. The