Article
Engineering, Environmental
Enric Brillas, Sergi Garcia-Segura
Summary: Photoelectrocatalysis (PEC) is an electrochemical advanced oxidation process that combines photocatalysis and electrolysis. It utilizes semiconductor photocatalysts to generate electron-hole pairs and oxidation species for the removal of organic pollutants. This paper provides a comprehensive review of the application of PEC with TiO2 photoanodes for wastewater treatment, discussing the fundamentals, operating variables, recent advances, and future prospects of this technique.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Palani Natarajan, Onder Metin
Summary: In this study, tert-Butyl nitrite (TBN) was used for the first time as a carbon source to synthesize highly valuable N-tert-butyl amides from nitriles and water under mild conditions.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Applied
Hongwei Zhu, Junjie Yan, Zhichen Zhang, Junpeng Ren, Yunfeng Zhu, Hui Zhao, Wei Xu, Bing Sun, Chaohe Yang
Summary: This study optimized the synthesis conditions of tert-butyl hydroperoxide using sulfuric acid as a catalyst in a microchannel reactor. The kinetic model of the synthesis was established, and it was found that byproducts were also produced during the reaction.
ORGANIC PROCESS RESEARCH & DEVELOPMENT
(2023)
Article
Chemistry, Physical
Liting Ju, Pingxiao Wu, Yiwen Ju, Meiqing Chen, Shanshan Yang, Hongjian Zhu
Summary: A new material, C-60@AgCl-LDO, was developed for photoelectrically degrading Bisphenol A (BPA). The nanoparticles showed strong absorption in the near-UV region and had efficient catalytic activities, mitigating the recombination of photogenerated charges. During the degradation process, the free radical center dot OH and the superoxide radicals were the principal factors affecting the degradation efficiency.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Organic
Marina Perez-Palau, Nil Sanosa, Pedro Romea, Felix Urpi, Rosa Lopez, Enrique Gomez-Bengoa, Merce Font-Bardia
Summary: A new stereoselective alkylation method has been developed using titanium(IV) enolates of chiral N-acyl oxazolidinones with tert-butyl peresters from Ca-branched aliphatic carboxylic acids. The reaction proceeds through the decarboxylation of peresters and formation of alkyl radicals, resulting in alkylated adducts with excellent diastereoselectivity. Theoretical calculations explain the observed reactivity and outstanding stereocontrol, with the resulting compounds easily converted into ligands for asymmetric and catalytic transformations.
Article
Chemistry, Organic
Qin Yang, Zhe Wang, Terumasa Kato, Yan Liu, Keiji Maruoka
Summary: Alkyl tert-butyl peroxides are synthesized from their corresponding tert-alkyl precursors and tert-butyl hydroperoxide with the aid of a promoter. These peroxides can be used in a copper-catalyzed radical functionalization, which involves coupling with various partners and exhibits broad substrate compatibility. Mechanistic investigations suggest the involvement of alkyl radical species in the coupling reactions.
Article
Chemistry, Organic
Hong-Xia Zhang, Rui-Li Guo, Xing-Long Zhang, Meng-Yue Wang, Bao-Yin Zhao, Ya-Ru Gao, Qiong Jia, Yong-Qiang Wang
Summary: A new chemistry of azo compounds has been developed, which involves the addition of free radicals generated in situ to various acyl hydrazides. This method provides a novel strategy for the synthesis of valuable acyl hydrazides, with mild reaction conditions, good tolerance of functional groups, and a broad substrate scope.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Daniel Diez-Iriepa, Damijan Knez, Stanislav Gobec, Isabel Iriepa, Cristobal de los Rios, Isaac Bravo, Francisco Lopez-Munoz, Jose Marco-Contelles, Dimitra Hadjipavlou-Litina
Summary: Novel polyfunctionalized nitrones show potential antioxidant and neuroprotective properties in stroke treatment, with compound (Z)-N-benzyl-1-(2-(3-(piperidin-1-yl)propoxy)phenyl)methanimine oxide exhibiting significant antioxidant and neuroprotective activities.
Article
Environmental Sciences
Patricia Garcia-Ramirez, Erik Ramirez-Morales, Juan Carlos Solis Cortazar, Ignasi Sires, Susana Silva-Martinez
Summary: Enhanced photocatalytic activity of TiO2 anodes was achieved by synthesizing Ru-doped TiO2 nanotube arrays. Compared to undoped TiO2 nanotubes, Ru-doped photoanodes exhibited higher saturation photocurrent under visible light, showing potential for solar photoelectrochemical applications.
Article
Chemistry, Multidisciplinary
Kensuke Kiyokawa, Keisuke Jou, Satoshi Minakata
Summary: A new transition-metal-free method using t-BuOI or NIS was reported for the construction of 1,3-diamine structures, enabling secondary non-benzylic and tertiary C-H amination reactions to proceed. Mechanistic investigations revealed different pathways for amination reactions using t-BuOI or NIS.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Polymer Science
Ibrahim Refai, Maryam Agboluaje, Robin A. Hutchinson
Summary: This study investigates the influence of solvent on the radical copolymerization propagation kinetics of MA and tBuAAm using the PLP-SEC technique. It is found that the copolymerization rate coefficients increase systematically with increasing MA content in the comonomer mixture, but fail to represent the data in systems with water content greater than 50%.
Article
Chemistry, Multidisciplinary
Fei Lian, Feixian Luo, Meng Wang, Kun Xu, Chengchu Zeng
Summary: A new electrochemical strategy utilizing paired electrolysis and halogen bonding activation has been developed for the atom transfer radical addition (ATRA) of polychloroalkanes across olefins. By employing readily accessible 4,4-di-tert-butyl bipyridine (dtbpy) as a halogen bonding acceptor, the reduction potential of C-Cl bonds could be positively shifted by 110 mV. This approach allows for a wide substrate scope and excellent functional group compatibility, enabling the addition of various terminal and internal alkenes.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Article
Thermodynamics
Zhian Huang, Donghong Song, Xiangming Hu, Yinghua Zhang, Yukun Gao, Sainan Quan, Yichao Yin, Yifu Yang, Hongsen Luo, Yucheng Ji
Summary: In this study, a modified antioxidant-type inhibitor (MAT-inhibitor) was developed to address the limitations of current inhibitors used in coal mines. The MAT-inhibitor demonstrated excellent thermal stability, high inhibition performance, and strong water absorption abilities, making it effective in controlling the spontaneous combustion of coal.
Article
Chemistry, Physical
Nnamdi Nwahara, Omotayo Adeniyi, Philani Mashazi, Tebello Nyokong
Summary: A visible light-responsive TiO2 - graphene oxide nanosheets - Zn phthalocyanine (TiO2@GONS@ZnPc) ternary structure was successfully fabricated for the photoelectrochemical degradation of Orange G azo dye. Characterization using various spectroscopic and microscopic techniques revealed that the surface hybrid heterojunction promotes charge separation and electron migration, leading to enhanced degradation efficiency. The study also demonstrated a non-radical activation route for persulfate using electron-rich ZnPc-GONS catalysts, indicating the crucial role of both GONS and ZnPc in mediating charge transfer.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Polymer Science
Yulia Kuznetsova, Ksenya Gushchina, Karina Sustaeva, Alexander Mitin, Marfa Egorikhina, Victoria Chasova, Lyudmila Semenycheva
Summary: Graft gelatin and poly(methyl methacrylate) copolymers with cross-linked structure were successfully synthesized in the presence of the tributylborane-2,5-di-tert-butyl-p-benzoquinone system. Compared with other initiating systems, this system exhibited a better cross-linking structure and showed high regenerative potential.
Article
Engineering, Environmental
Xiaojie Mei, Jing Bai, Shuai Chen, Mengyang Zhou, Panyu Jiang, Changhui Zhou, Fei Fang, Yan Zhang, Jinhua Li, Mingce Long, Baoxue Zhou
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Engineering, Environmental
Tingsheng Zhou, Shuai Chen, Jiachen Wang, Yan Zhang, Jinhua Li, Jing Bai, Baoxue Zhou
Summary: An excellent CQDs/FeOOH/BiVO4 photoanode was designed to address the issues of severe bulk and surface charge recombination, sluggish OER kinetics, and narrow visible light harvesting in BiVO4. The photoanode showed dramatically enhanced photocurrent and IPCE, attributed to the synergistic catalysis of CQDs and FeOOH, suppression of bulk charge recombination by CQDs/BiVO4 heterojunction, and increased light harvesting by CQDs.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Jiachen Wang, Yan Zhang, Tingsheng Zhou, Shuai Chen, Hong Zhu, Jing Bai, Jinhua Li, Baoxue Zhou
Summary: An efficient WO3-x nanoplates photoanode was generated based on bidentate hydrogen bonds and in subsequent thermal reduction of ethylene glycol (EG). The introduction of oxygen vacancies (O-v) significantly improved the photocurrent density, reduced the reaction energy barrier, and enhanced surface reaction kinetics.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Mengyang Zhou, Shuai Chen, Jing Bai, Jiachen Wang, Yan Zhang, Tingsheng Zhou, Jinhua Li, Wenfeng Shangguan, Baoxue Zhou
Summary: Oxygen concentration and distribution in hematite significantly affect holes transfer efficiency, ultimately influencing the performance of photoelectrocatalytic water splitting. Thermal treatment leads to changes in oxygen, impacting holes transfer efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Environmental
Changhui Zhou, Jing Bai, Yan Zhang, Jinhua Li, Zhijing Li, Panyu Jiang, Fei Fang, Mengyang Zhou, Xiaojie Mei, Baoxue Zhou
Summary: By proposing a novel 3D Pd-Cu(OH)(2)/CF cathode based electrocatalytic system, efficient and selective removal of NO3- to NH4+ and further oxidation to N-2 was achieved. This system demonstrated high efficiency and removal rate, providing an effective solution for wastewater treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Tingsheng Zhou, Lei Li, Jinhua Li, Jiachen Wang, Jing Bai, Ligang Xia, Qunjie Xu, Baoxue Zhou
Summary: The novel CQDs/E-TiO2 photoanode is designed to synergistically improve the performance of photoelectrochemical water splitting by electrochemically reducing TiO2 and modifiying CQDs to enhance bulk charge separation efficiency, surface charge transfer efficiency, and oxygen evolution reaction kinetics. The CQDs/E-TiO2 exhibits significantly higher photocurrent densities compared to TiO2 and E-TiO2, demonstrating its potential for efficient water splitting applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Bo Zhang, Jing Bai, Yan Zhang, Changhui Zhou, Pengbo Wang, Lina Zha, Jinhua Li, Abdolreza Simchi, Baoxue Zhou
Summary: This study proposes a method to convert H2S and CO2 into CO and S simultaneously using an electrochemical reactor, achieving high efficiency and yield. Through special designs in the anodic and cathodic chambers, the synchronized utilization of H2S and CO2 is successfully realized.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Changhui Zhou, Jinhua Li, Yan Zhang, Jing Bai, Lei Li, Xiaojie Mei, Xiaohong Guan, Baoxue Zhou
Summary: This study proposes a novel denitrification fuel cell for treating nitrate-rich wastewater, which can convert NO3- into N-2 and recover chemical energy into electrical energy using a copper nanowire-modified copper foam cathode.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Yan Zhang, Wenjing Tang, Jing Bai, Jinhua Li, Jiachen Wang, Tingsheng Zhou, Xiaohong Guan, Baoxue Zhou
Summary: An efficient electrochemical system was developed to simultaneously remove total nitrogen and dissolved organic compounds in wastewater reclamation by utilizing chlorine radicals. Co3O4 nanowires outperformed other nanomaterials, achieving high removal rates for NH3-N and DOC in synthetic ROC.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Pengbo Wang, Jinhua Li, Yang Xu, Changhui Zhou, Yan Zhang, Lina Zha, Bo Zhang, Jing Bai, Baoxue Zhou
Summary: A self-driving nano photoelectrocatalytic system was developed to efficiently treat nitrogen pollution in urine, producing hydrogen and removing total nitrogen under neutral pH conditions.
Article
Engineering, Environmental
Yan Zhang, Xiaoya Huang, Jinhua Li, Jing Bai, Changhui Zhou, Lei Li, Jiachen Wang, Mingce Long, Xinyuan Zhu, Baoxue Zhou
Summary: This research reports a novel system that decomposes urine into H-2 and N-2 under neutral conditions using Co3O4 nanowire anodes and CuO nanowire cathodes. The system effectively boosts electron transfer and overcomes kinetic limitations, resulting in higher H-2 production compared to conventional electrolysis methods. Additionally, the system successfully degrades urine and removes nitrogen with N-2 as the final product.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Jiachen Wang, Tingsheng Zhou, Yan Zhang, Lei Li, Changhui Zhou, Jing Bai, Jinhua Li, Hong Zhu, Baoxue Zhou
Summary: A type-II heterojunction CdIn2S4/BiVO4 is designed to improve the photocurrent density, and the introduction of CQDs further enhances the performance. Spin-coating of FeOOH on CQDs/CdIn2S4/BiVO4 can further improve the PEC performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Jiachen Wang, Jing Bai, Yan Zhang, Lei Li, Changhui Zhou, Tingsheng Zhou, Jinhua Li, Hong Zhu, Baoxue Zhou
Summary: In this study, an unconventional substitution of Ti4+ for V5+ sites in BiVO4 resulted in Ti:BiVO4, which exhibited improved efficiency and charge carrier separation in photoelectrocatalytic water oxidation. Ti:BiVO4 showed a 1.90-fold increase in photocurrent density (2.51 mA cm-2 at 1.23 V vs RHE) and a 1.81-fold increase in charge carrier density (5.86 x 1018 cm-3) compared to pure BiVO4. DFT calculations suggested that Ti doping could decrease the polaron hopping energy barrier, narrow the band gap, and decrease the overpotential of the oxygen evolution reaction (OER).
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Hongfeng Zhao, Yan Zhang, Chaoyue Xie, Jiachen Wang, Tingsheng Zhou, Changhui Zhou, Jinhua Li, Jing Bai, Xinyuan Zhu, Baoxue Zhou
Summary: This study introduces a non-precious ultrathin NiFe-layered double hydroxide catalyst for efficient conversion of urea into N2 and H2. The catalyst exhibits ultrathin nanosheet structure that promotes dehydrogenation process and shows excellent stability. This research provides a promising approach for H2 production from urine biowastes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yan Zhang, Youzhi Ji, Jinhua Li, Jing Bai, Shuai Chen, Linsen Li, Jiachen Wang, Tingsheng Zhou, Panyu Jiang, Xiaohong Guan, Baoxue Zhou
Summary: The study proposed a method for efficient removal of ammonia pollution using a BiVO4/WO3 photoanode in a self-driven photoelectrocatalytic system by selectively generating Cl-. By modifying BiVO4 to regulate the valence band edge of WO3, the method enhanced Cl- production and reduced the generation of toxic chlorate and nitrate, providing new insights for developing efficient and environmentally friendly treatment methods for ammonia pollution.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
