Article
Chemistry, Physical
Zhuzhu Zhang, Rui Ji, Qimeng Sun, Jinghui He, Dongyun Chen, Najun Li, Hua Li, Antonio Marcomini, Qingfeng Xu, Jianmei Lu
Summary: Constructing photocatalysts with excellent visible light utilization efficiency and high-efficiency photo-generated charge transfer rate is crucial for the photodegradation of organic pollutants in wastewater. In this study, oxygen-doped graphitic carbon nitride (g-C3N4) was prepared and used as a responsive material for a wide range of visible light. CdS nanoparticles were then anchored onto the g-C3N4 to form a Z-scheme heterojunction, which facilitated interfacial charge separation. The results showed that the oxygen-doped g-C3N4/CdS-3 displayed a significantly higher degradation rate for 2-chlorophenol compared to g-C3N4.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Chemical
Guowei Wang, Hefa Cheng
Summary: In this work, a unique recyclable interfacial Z-scheme NiFe2O4/{0 1 0}BiVO4 composite was successfully designed for the removal of norfloxacin in aqueous solution. The composite exhibited a high removal efficiency and superior stability due to its interfacial Z-scheme structure. The formation of the composite occurs when specific facets of BiVO4 are exposed, creating a surface heterojunction.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Chujun Feng, Ziwei Lu, Yuzhe Zhang, Qian Liang, Man Zhou, Xiazhang Li, Chao Yao, Zhongyu Li, Song Xu
Summary: A dual Z-scheme g-C3N4 QDs-CoTiO3/CoFe2O4 composite photocatalyst was successfully synthesized, which significantly improved the degradation performance and stability of oxytetracycline, and exhibited magnetic controllability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Jinsong Liu, Zhongbao Sun, Zhengying Wu, Yanfang Huang, Kongjun Zhu, Hongjuan Zheng, Jie Wang, Jiankang Chen
Summary: AgBr/Bi2SiO5 photocatalyst with Z-scheme structure was synthesized and showed high photocatalytic activity for RhB degradation under visible light irradiation. The degradation efficiency remained above 81.7% after five cycles of reuse. The Z-scheme structure facilitated charge carrier separation and dye sensitization effect, providing valuable insights for developing other Z-scheme photocatalysts.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Chemical
Cong Liu, Shuo Sun, Mingchuan Yu, Yufei Zhou, Xiaoxia Zhang, Junfeng Niu
Summary: A p-n/Z-scheme dual heterojunction photocatalyst (BFC) was designed and prepared by introducing black phosphorus nanosheets and FeSe2 into porous g-C3N4 to improve its photocatalytic activity. BFC achieved 100% TBBPA degradation efficiency in 40 min and 22.6% debromination efficiency in 60 min under visible light irradiation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Qiao Wang, Yiting Cao, Meirui Yu, Guanheng Lv, Chuyi Zhang, Wei Wang, Jialin Jia, Zhihong Wang
Summary: In this study, a novel AgBr/BiO(HCOO)(0.75)I-0.25 Z-scheme photocatalyst was developed for visible-light driven wastewater remediation. The catalyst exhibited excellent performance in the decomposition of bisphenol A (BPA), and was tolerant to coexisting inorganic anions and natural organic matters. Furthermore, a negative correlation between the reaction kinetics and the ionization potential of the organic compounds was observed.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Biao Zhang, Yu Liu, Kanghong Zhou, Hongyu Zhu, Dongxu Gu, Wei Ge, Ying Gan, Jianyuan Hao
Summary: In this work, a novel camellia-structured double Z-scheme BiOBr/g-C3N4/Bi2O2CO3 photocatalyst was prepared by a hydrothermal method. The ternary heterojunction exhibited high efficiency in degrading Rhodamine B under visible light, thanks to improved charge separation and enhanced visible light absorption. The BiOBr/g-C3N4/Bi2O2CO3 photocatalysts are promising materials for dye removal in effluents.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Hao Xu, Jian Yang, Yang Li, Fan Fu, Kang Da, Shaobo Cao, Wenting Chen, Ximei Fan
Summary: A dual Z-scheme photocatalyst consisting of Bi2O3 quantum dots decorated TiO2/BiOBr was prepared for toluene degradation under visible-light. The optimized photocatalyst showed excellent removal rate, recoverability, and durability, surpassing other comparison samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Chemical
Pengfei Zhu, Dan Luo, Mei Liu, Ming Duan, Jinru Lin, Xiaolong Wu
Summary: A novel BiOI/BiVO4/g-C3N4 composite photocatalyst with excellent photocatalytic activity was prepared by a simple ultrasonic-assisted hydrothermal method, showing promising application prospects in antibiotic wastewater treatment.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Yuqing Lu, Chunsheng Ding, Jun Guo, Wei Gan, Peng Chen, Miao Zhang, Zhaoqi Sun
Summary: Ternary Bi2MoO6/GQDs/TiO2 heterojunction photocatalysts were prepared and showed high efficiency in degrading antibiotics. The synthesized dual Z-scheme heterojunctions improved light capture ability and reduced the photogenerated electron-hole recombination rate, effectively addressing the challenges in photocatalyst use. Three environmentally friendly degradation pathways were proposed based on LC-MS results and toxicity evaluation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Chemical
Chujun Feng, Qinyi Gu, Jian Rong, Qian Liang, Man Zhou, Xiazhang Li, Song Xu, Zhongyu Li
Summary: In this study, a direct dual Z-scheme heterojunction structure was constructed by combining InOOH with strong redox capacity and CoWO4 with high electron mobility on the surface of reticular g-C3N4. The comprehensive characterizations confirmed the three-phase coexistence of InOOH, CoWO4, and RCN. The close heterojunction interfaces and well-matched band structures contributed to the improved separation efficiency of photogenerated electron-hole pairs. The photocatalytic performance of the InOOH/RCN/CoWO4 composite was significantly superior to that of RCN, InOOH, and CoWO4, with a degradation efficiency of 94%, mainly attributed to the direct dual Z-scheme heterojunction. The detection of intermediates in the degradation process confirmed the green environmental protection of the degradation products. The study provides a facile pathway for the preparation of high efficiency photocatalysts and the treatment of environmental pollution.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Panpan Jing, Chenpu He, Shengchi Huang, Haohui Li, Jiale Liu, Yongfei Cui, Yongping Pu, Jenghan Wang
Summary: In this study, a novel BaTiO3/BiOIO3 layered composite was successfully synthesized by proposing a synergistic strategy of 2D Z-scheme heterojunction and rich oxygen deficiency. The composite exhibited enhanced photo response, separation efficiency, and high redox capability of photo-excited carriers through a Z-scheme migration pathway. The photocatalytic activity of the composite towards tetracycline degradation was 4.4 times higher than that of pure BaTiO3.
APPLIED MATERIALS TODAY
(2022)
Article
Engineering, Chemical
Dibya Ranjan Rout, Hara Mohan Jena
Summary: In this study, a green and facile method was used to synthesize a Z-scheme graphene oxide-modified ternary composite (ZnO/GO/Mn2O3) photocatalyst. Characterization results showed that the catalyst had a bandgap energy of 1.69 eV and a surface area of 75.35 m2/g. The synthesized ZnO/GO/Mn2O3 composite exhibited efficient degradation of BPA under sunlight irradiation, with complete degradation achieved within 20 minutes. The enhanced catalytic activity was attributed to the formation of an efficient Z-scheme heterojunction, which facilitated the separation of charge carriers and increased the number of reactive species in the solution. The catalyst also showed good recyclability, with only a slight reduction in degradation efficiency after five consecutive cycles.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Engineering, Environmental
Debashis Roy, Sudarsan Neogi, Sirshendu De
Summary: A green synthesis method was employed to synthesize a MIL-88A(Fe)/MoS2 composite photocatalyst for degrading BPA in water. 20% MoS2 doping resulted in optimal activity, increased surface area, and abundant active sites. The excellent photocatalytic activity was attributed to suitable heterojunction formation and efficient Z-scheme heterojunction.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Weikang Peng, Guiqin Hou, Jiahao Ye, Mingxi Zhang, Fengfeng Li
Summary: In this study, a solid Z-scheme heterojunction photocatalyst, Ag3PO4/PtNPs/g-C3N4, was prepared via in-situ deposition and demonstrated efficient degradation of rhodamine B and phenol in water. The synergistic effect of its three components resulted in better photodegradation performance compared to other catalysts. The active species responsible for catalysis were identified as holes and superoxide radicals.
Article
Engineering, Environmental
Poulomi Sarkar, Debashis Roy, Biswajit Bera, Sirshendu De, Sudarsan Neogi
Summary: This study successfully fabricated a novel ternary heterojunction composite, demonstrating superior visible light catalytic activity with efficient separation of photogenerated charge carriers and generation of reactive species. Using Ciprofloxacin (CIP) as a model pollutant, the composite showed potential application in water decontamination.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Manisha Choudhary, Poulomi Sarkar, Surender Kumar Sharma, Anil Kajla, Sudarsan Neogi
Summary: The study investigated the degradation of a synthetic female hormone in water using a pulsed electrical discharge plasma reactor, achieving complete removal of EE2 in 15 seconds. The research demonstrated the potential of non-thermal pulsed plasma technology for degrading EE2 at environmentally relevant concentrations.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Poulomi Sarkar, Debashis Roy, Biswajit Bera, Sirshendu De, Sudarsan Neogi
Summary: Graphitic carbon nitride (g-C3N4) was used as a sacrificial substructure and two-dimensional support to synthesize magnetic CoFe2O4/g-CN composite via a one-step solid combustion method. The composite exhibited excellent magnetic separation and photocatalytic degradation of reactive dyes (RDs) under UV irradiation. Radical-based degradation was confirmed as the dominant mechanism, and the degradation and mineralization pathways of RDs were proposed through LCMS/MS analysis.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
