LED-light-activated photocatalytic performance of metal-free carbon-modified hexagonal boron nitride towards degradation of methylene blue and phenol

• Nirmalendu S. Mishra and
• Pichiah Saravanan

Beilstein J. Nanotechnol. 2022, 13, 1380–1392, doi:10.3762/bjnano.13.114

• photosensitization of MB dye moieties generates additional photo-excited electrons which are transferred into the CB of MBN-80, resulting in enhanced charge carrier density and generation of •OH via the O2 reduction pathway, thus enhancing dye degradation. Conversely, the photocatalytic degradation of phenol showed

Engineered titania nanomaterials in advanced clinical applications

• Padmavati Sahare,
• Paulina Govea Alvarez,
• Juan Manual Sanchez Yanez,
• Gabriel Luna-Bárcenas,
• Samik Chakraborty,
• Sujay Paul and
• Miriam Estevez

Beilstein J. Nanotechnol. 2022, 13, 201–218, doi:10.3762/bjnano.13.15

Self-assembly of amino acids toward functional biomaterials

• Huan Ren,
• Lifang Wu,
• Lina Tan,
• Yanni Bao,
• Yuchen Ma,
• Yong Jin and
• Qianli Zou

Beilstein J. Nanotechnol. 2021, 12, 1140–1150, doi:10.3762/bjnano.12.85

• photosensitization activity and photostability of phthalocyanine. Camptothecin can induce tumor apoptosis by inhibiting the activity of topoisomerase I [90]. However, camptothecin has some major limitations in therapeutic applications, such as poor water solubility and rapid lactone ring hydrolysis at physiological

Air oxidation of sulfur mustard gas simulants using a pyrene-based metal–organic framework photocatalyst

• Ghada Ayoub,
• Mihails Arhangelskis,
• Xuan Zhang,
• Florencia Son,
• Timur Islamoglu,
• Tomislav Friščić and
• Omar K. Farha

Beilstein J. Nanotechnol. 2019, 10, 2422–2427, doi:10.3762/bjnano.10.232

• that will selectively produce the partially oxidized sulfoxide. In that context, a promising approach is the use of singlet oxygen (1O2) generated by photosensitization of ground-state molecular oxygen (3O2) via an electronically excited chromophore. The chromophores can be compounds with significant

Improved adsorption and degradation performance by S-doping of (001)-TiO₂

• Xiao-Yu Sun,
• Xian Zhang,
• Xiao Sun,
• Ni-Xian Qian,
• Min Wang and
• Yong-Qing Ma

Beilstein J. Nanotechnol. 2019, 10, 2116–2127, doi:10.3762/bjnano.10.206

• photosensitization of MoS2 and the stable interface between the two phases could promote the transfer of electrons from MoS2 to (001)-TiO2 and enhance its visible-light response [16]. It was also demonstrated that Au nanoparticles deposited on the surface of (001)-TiO2 particles could promote the separation of photo

Photoactive nanoarchitectures based on clays incorporating TiO₂ and ZnO nanoparticles

• Eduardo Ruiz-Hitzky,
• Pilar Aranda,
• Marwa Akkari,
• Nithima Khaorapapong and
• Makoto Ogawa

Beilstein J. Nanotechnol. 2019, 10, 1140–1156, doi:10.3762/bjnano.10.114

• alternative interesting semiconductor–semiconductor heterojunctions. Finally, another approach to increase the photo-efficiency of the considered systems is the photosensitization of TiO2 and ZnO NPs to obtain visible-light responsive photocatalysts as well as solar-cell components [93][141][142]. These

• diverse types of clay minerals. According to the Encyclopedia Britannica, the term “photosensitization” is defined as “the process of initiating a reaction through the use of a substance capable of absorbing light and transferring the energy to the desired reactants” [165]. Therefore, photosensitization

• electronic characteristics, or by adding conducting polymers with different degrees of transparency, or black electronic collectors such as graphene and CNT components to the nanoarchitectured clay-based materials. Photosensitization using organic components is a potential way to improve the photo-efficiency

The nanoscaled metal-organic framework ICR-2 as a carrier of porphyrins for photodynamic therapy

• Jan Hynek,
• Sebastian Jurík,
• Martina Koncošová,
• Jaroslav Zelenka,
• Ivana Křížová,
• Tomáš Ruml,
• Kaplan Kirakci,
• Ivo Jakubec,
• František Kovanda,
• Kamil Lang and
• Jan Demel

Beilstein J. Nanotechnol. 2018, 9, 2960–2967, doi:10.3762/bjnano.9.275

• of variable geometry enables the preparation of a large number of structures with tuneable pore sizes, topologies, and chemical nature [1][2]. Among them, MOFs with photoactivatable properties such as luminescence and photosensitization of singlet oxygen, O2(1∆g), are particularly attractive [3][4][5

Perovskite-structured CaTiO₃ coupled with g-C₃N₄ as a heterojunction photocatalyst for organic pollutant degradation

• Ashish Kumar,
• Christian Schuerings,
• Suneel Kumar,
• Ajay Kumar and
• Venkata Krishnan

Beilstein J. Nanotechnol. 2018, 9, 671–685, doi:10.3762/bjnano.9.62

• rhodamine B (RhB) dye under UV, visible and natural sunlight irradiation. Also, the degradation of a non-photosensitizing colorless pollutant, BPA, was also studied under sunlight to eliminate the doubt of RhB photosensitization in the photocatalytic activity. The CTCN heterojunction offers enhanced light

• irradiation, which cannot be attributed to the dye photosensitization alone. High energy UV radiation can also cause excitation of electrons from the VB of g-C3N4 to its CB. However, this mechanism may not be applicable for visible light irradiation, as CT does not absorb at all in the visible region and

Sugarcane juice derived carbon dot–graphitic carbon nitride composites for bisphenol A degradation under sunlight irradiation

• Lan Ching Sim,
• Jing Lin Wong,
• Chen Hong Hak,
• Jun Yan Tai,
• Kah Hon Leong and
• Pichiah Saravanan

Beilstein J. Nanotechnol. 2018, 9, 353–363, doi:10.3762/bjnano.9.35

• of the positive results, the self-modification consumes concentrated alkali and acid, which is harmful to our environment and health. It has been accepted that the coupling of nanocarbon materials with other semiconductors [21] could induce synergetic effects like photosensitization, electron

Application of visible-light photosensitization to form alkyl-radical-derived thin films on gold

• Rashanique D. Quarels,
• Xianglin Zhai,
• Neepa Kuruppu,
• Jenny K. Hedlund,
• Ashley A. Ellsworth,
• Amy V. Walker,
• Jayne C. Garno and
• Justin R. Ragains

Beilstein J. Nanotechnol. 2017, 8, 1863–1877, doi:10.3762/bjnano.8.187

• deposition of robust alkyl thin films on Au surfaces using phthalimide esters as the alkyl radical precursors. In particular, we combine visible-light photosensitization with particle lithography to produce nanostructured thin films, the thickness of which can be measured easily using AFM cursor profiles

• lithography; photosensitization; TOF SIMS; Introduction The deposition of radical-derived organic thin films has emerged as an attractive alternative to the grafting of molecules such as thiols, chlorosilanes and alkoxysilanes [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23

• analogous abstraction of hydrogen from a stronger secondary aliphatic C–H bond in an alkyl chain lacking oxygens should be even slower. We are not aware of any reports on the formation of crosslinked hydrocarbons from linear species when phthalimide ester photosensitization is used for the synthesis of

Two-dimensional carbon-based nanocomposites for photocatalytic energy generation and environmental remediation applications

• Suneel Kumar,
• Ashish Kumar,
• Ashish Bahuguna,
• Vipul Sharma and
• Venkata Krishnan

Beilstein J. Nanotechnol. 2017, 8, 1571–1600, doi:10.3762/bjnano.8.159

• photosensitization by graphene has opened many new paths in fabricating novel graphene–semiconductor-based nanocomposites for various photocatalytic applications. In addition to the reports cited above, several graphene-based nanocomposites have been successfully developed and utilized for photocatalytic energy

Nanostructure sensitization of transition metal oxides for visible-light photocatalysis

• Hongjun Chen and
• Lianzhou Wang

Beilstein J. Nanotechnol. 2014, 5, 696–710, doi:10.3762/bjnano.5.82

• photocatalysts has recently attracted a lot of interest. The photosensitization of transition metal oxides is a promising approach for achieving effective visible-light photocatalysis. This review article primarily discusses the recent progress in the realm of a variety of nanostructured photosensitizers such as

• visible-light photocatalytic reaction processes in environmental remediation and solar fuel generation fields, are also introduced. A brief outlook on the nanostructure photosensitization is also given. Keywords: carbon nanostructures; nanostructure sensitization; plasmonic metal nanostructures; quantum

• function in the visible-light region (420 nm < λ < 800 nm) with a band gap of less than 3 eV. An effective method used to overcome the limitation of well-developed UV-active photocatalysts is by photosensitization. In the past two decades, the emergence of nanomaterials as new building blocks in the

A visible-light-driven composite photocatalyst of TiO₂ nanotube arrays and graphene quantum dots

• Donald K. L. Chan,
• Po Ling Cheung and
• Jimmy C. Yu

Beilstein J. Nanotechnol. 2014, 5, 689–695, doi:10.3762/bjnano.5.81

• improved photocatalytic performance of GQDs/TNAs over TNAs can be simply explained by the photosensitization of TNAs by GQDs [38]. Upon visible light irradiation, electron–hole pairs are generated by the GQDs. Typically, the conduction band level of GQDs is higher than that of TiO2 [36][42]. Thus, an

• fabricated by covalently bonding GQDs onto amine-modified TNAs. The GQDs/TNAs composite retains the highly ordered nanotube morphology and well crystallized anatase phase. The high visible-light photocatalytic activity could be attributed to photosensitization of TNAs by GQDs. This research shows the