Article
Chemistry, Physical
Liu Wan, Yuqi Wang, Dianyu Jiang, Yan Zhang, Mingjiang Xie, Jian Chen, Cheng Du
Summary: A rational nickel sulfide @ nickel boride (Ni9S8@-Ni2B) heterostructure is synthesized on carbon cloth (CC) substrate via a simple electrodepositon strategy followed by a chemical reduction method. The hierarchically porous Ni9S8@Ni2B nanosheet arrays can expose ample electro-active centers, shorten ion diffusion distance, and buffer volume changes during charging/discharging process. The Ni9S8@Ni2B//porous carbon asymmetric supercapacitor exhibits a high specific capacity, sound rate capability, and good cycling performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Fengyun Su, Zhishuai Wang, Mengzhen Tian, Kecheng Liu, Haiquan Xie, Wenguang Tu, Yezhen Zhang, Xiang Li, Xiaoli Jin, Xin Ying Kong
Summary: In this study, a crystalline-amorphous homojunction photocatalyst was developed for efficient reduction of CO2 into CH4 and CO. The remarkable photocatalytic performance of the material is attributed to its large specific surface area, abundant –OH groups, crystalline-amorphous homojunction interface, and narrowed bandgap. This work demonstrates the potential of solitary crystalline-amorphous materials as efficient and selective photocatalysts for CO2 conversion.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Jing Jiang, Yalin Hu, Xinrui He, Zhipeng Li, Fu Li, Xing Chen, Yi Niu, Jie Song, Pei Huang, Guiyun Tian, Chao Wang
Summary: A novel battery-type electrode structure has been developed to significantly enhance the energy density and lifespan of capacitors, providing a valuable measure for the rational development of high energy density hybrid energy storage devices beyond supercapacitors.
Article
Engineering, Environmental
Kang Sun, Ying Wang, Chengshuai Chang, Song Yang, Shuanlong Di, Ping Niu, Shulan Wang, Li Li
Summary: Graphitic carbon nitride (g-C3N4) is considered a promising electrode candidate for energy storage devices due to its high theoretical capacity and chemical stability, but its actual capacity is limited by crystallinity destruction and aggregation issues. A molten-salt synthesis protocol can alleviate these problems, leading to the formation of nanosheet-like structures with abundant edges/pores and high nitrogen content, resulting in improved reversible capacity. Using glucose as the carbon source, the crystalline C3N4/C composite delivered record-high reversible capacity and outstanding full-cell performance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Lu Yang, Yong Liu, Pengfei Tan, Ying Lu, Qingguo Ding, Jun Pan
Summary: An innovative g-C3N4-TiO2@CsPbBr3 composite catalyst was prepared and demonstrated to have enhanced photocatalytic performance for tetracycline hydrochloride degradation. The catalyst exhibited increased light-harvesting capability and more efficient charge carrier separation, leading to a degradation rate of 75.6% in 120 min, which was 2.30 and 2.03 times higher than TiO2@CPB and pure g-C3N4, respectively. The study also identified O-2(-) as the dominant active specie in the photocatalytic degradation process and proposed a possible photocatalytic mechanism.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Physical
Linchao Yao, Huaming Zhang, Muhammad Humayun, Yanjun Fu, Xuefei Xu, Cuidi Feng, Chundong Wang
Summary: A rose-like crystalline/amorphous heterostructure of NiFe2O4/NiO/NF grown on Ni-foam (NF) was synthesized and demonstrated excellent electrocatalytic performance for oxygen evolution reaction (OER) and urea oxidation reaction (UOR), with high stability and low potentials required. This work represents a solid step towards energy-saving H2 generation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Qing Dong, Hui Wang, Jianwei Ren, Xuyun Wang, Shan Ji, Rongfang Wang
Summary: In this study, a dense crystalline Fe2O3/amorphous Cu interface was successfully created using a combination of solverthermal and annealing processes, resulting in ultra-dispersed Cu nanoparticles. The interface structure facilitated electron transfer and surface oxygen species adsorption, leading to superior performance of the Fe2O3/Cu-PNC catalyst in both OER and HER operations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Guoyu Li, Genying Zeng, Zhangkai Chen, Jiaming Hong, Xiaodong Ji, Zhiqiang Lan, Xiaofei Tan, Meifang Li, Xinjiang Hu, Chunfang Tang
Summary: The study presented the synthesis of C3N5 nanosheet/Ag2CO3 nanocomposites (CNAC-X) as efficient photocatalysts for the visible-light-driven degradation of methylene blue and tetracycline hydrochloride. Due to the synergistic effect of nanosheet structures, carbon defects, and Z-scheme heterojunctions, CNAC-10 exhibited the highest photocatalytic activity.
Article
Engineering, Environmental
Xudong Yin, Xiaojie Sun, Yufeng Mao, Ruzhen Wang, Dehao Li, Wenyu Xie, Zhenghui Liu, Zhisen Liu
Summary: This study successfully synthesized a new type of composite photocatalyst, MT-BiVO4, composed of BiVO4 microspheres containing coexisting phases of M-BiVO4 and T-BiVO4, loaded onto P-doped g-C3N4 nanosheets (PCNS). The morphology, structure, and photoelectrochemical properties of the composite photocatalysts were characterized, and their performance and stability in photocatalytic degradation of TC-HCl were examined. The findings showed that the photocatalytic activity of the composite catalyst was significantly influenced by the percentage of M-BiVO4 in MT-BiVO4. Furthermore, the 5% BVO/PCNS composite exhibited excellent photocatalytic performance due to the synergistic effects of P-doped g-C3N4, MT-BiVO4 isotype heterojunction effects, and the Z-scheme heterojunction constructed from MT-BiVO4 and PCNS. The composite material showed high reusability and stability, making it a promising candidate for practical wastewater treatment applications. This study presents a new approach for preparing photocatalysts synergized by isotype and Z-scheme heterojunctions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Soheila Asadzadeh-Khaneghah, Aziz Habibi-Yangjeh, Davod Seifzadeh, Hushan Chand, Venkata Krishnan
Summary: Novel C3N4-NS/CD/FeOCl nanocomposites were fabricated for efficient elimination of pollutants and antibiotics under visible light, demonstrating high structural durability and a Z-scheme charge movement mechanism. The photocatalysts exhibited superior photoactivity attributed to excellent visible-light absorption and fast charge segregation and transportation characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Applied
Dai Zhang, Yuanyuan Chen, Hanqing Dai, Xuewei Lv, Ruiqian Guo, Qiongrong Ou, Shuyu Zhang
Summary: In this study, defective crystalline vanadium disulfide/amorphous molybdenum sulfide/reduced graphene oxide (cVS2/a-MoSx/RGO) nanocomposites were fabricated via a combined hydrothermal-plasma method. The HER performance of c-VS2/a-MoSx/RGO was optimized by tuning the plasma treatment duration and the amount of precursors. The optimal c-20VS2/a-40MoSx/RGO catalyst exhibited excellent HER activity and good stability, providing a facile and effective strategy for promoting the HER performance of TMDs.
Article
Chemistry, Multidisciplinary
Jiashun Wu, Tong Yang, Rong Fu, Min Zhou, Lixue Xia, Zhaoyang Wang, Yan Zhao
Summary: Hollow CoNiFe-LDH nanocages with amorphous/crystal phase and element gradient distribution are successfully constructed through coordinated etching and precipitation process. The distinctive element gradient distribution in hollow CoNiFe-LDH nanocages result in composition gradient, which plays an important role in regulating morphology and electronic structure. When used as OER electrocatalysts, these nanocages exhibit competitive overpotential and low Tafel slope, making them highly efficient for electrochemical water splitting.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Chemical
Caixia Guo, Qiming Chen, Jiayi Zhong, Wenchao Peng, Yang Li, Fengbao Zhang, Xiaobin Fan
Summary: In this study, we successfully constructed the amorphous-crystalline interfaces of NiFePx/NiFeOx nanosheets with substantial oxygen vacancies through controllable surface phosphorization. The unique structure exhibited fast charge transfer, abundant active sites, and enhanced intrinsic activity, resulting in outstanding oxygen evolution reaction (OER) performance. The optimized NiFePx/NiFeOx showed a low overpotential of 238 mV at 20 mA cm-2 and excellent stability in 1 M KOH electrolyte. This study provides an effective strategy to promote the OER performance of transition-metal oxides (TMOs) in alkaline water splitting.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Shuangjian Li, Chuangyong Yu, Chunming Deng, Jun Liu, Xi Tan, Wei Zeng
Summary: A robust self-lubricating ceramic coating was fabricated by in-situ synthesis of carbon and thermal spray technology process. The composite coating exhibited superior mechanical properties and significantly reduced coefficient of friction and wear rate.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yanglin Chen, Limo He, Hui-Ru Tan, Xuanhao Lin, Stephan Jaenicke, Gaik-Khuan Chuah
Summary: The research team synthesized a highly crystalline graphitic carbon nitride homojunction by calcination of a mixture of NH4SCN and urea, using NaCl/KCl molten salts as the preparation medium. The homogeneity of the liquid precursor ensured an intimate homojunction interface, facilitating the charge separation, and the highly crystalline bulk structure built a highway for rapidly transferring charge to the surface. As a result, bulk charge recombination was suppressed, and the spatial separation and transfer efficiency of charges were significantly improved. Compared to low crystalline homojunctions, this highly crystalline homojunction showed 15 times higher activity for the selective photocatalytic oxidation of benzyl alcohol to benzaldehyde. This work provides a simple strategy to construct a highly crystalline graphitic carbon nitride homojunction for solar energy conversion.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Engineering, Electrical & Electronic
Dongbo Wang, Shi Li, Qingge Feng
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2018)
Article
Chemistry, Physical
Dongbo Wang, Xianqing Huang, Ying Huang, Xin Yu, Ye Lei, Xiyuan Dong, Zelin Su
Summary: Through morphology control and element doping, the chlorine-doped g-C3N4 nanosheets show significantly higher efficiency in removing rhodamine B and tetracycline hydrochloride, with faster degradation rates. The supramolecular self-assembly and chlorine doping demonstrate a noticeable synergy in enhancing photocatalytic performance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Materials Science, Multidisciplinary
Dongbo Wang, Ying Huang, Xin Yu, Xianqing Huang, Yaxuan Zhong, Xiaoxiao Huang, Zheng Liu, Qingge Feng
Summary: A low-toxic template-free method was used to prepare porous graphitic carbon nitride (CCM18) with high specific surface area, stronger light absorption capacity, and a band gap energy of 2.92 eV. The degradation rate of tetracycline hydrochloride by CCM18 was more than twice that of other materials, primarily through reaction with superoxide radicals and hydroxyl radicals. The enhanced performance and stability of CCM18 suggest potential for industrial applications.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Xin Yu, Qingge Feng, Dachao Ma, Haiying Lin, Zheng Liu, Ying Huang, Xianqing Huang, Xiyuan Dong, Ye Lei, Dongbo Wang
Summary: A novel alpha/beta-Bi2O3 hetero-phase junction (xBB) was successfully prepared by a simple in-situ growth method, showing significantly improved photocatalytic activity compared to pure alpha-Bi2O3 and beta-Bi2O3. The method provides a promising route for the in-situ construction of hetero-phase junction nanocomposites, offering new possibilities for research in the field of photocatalysis.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Physical
Dongbo Wang, Xin Yu, Qingge Feng, Xianhao Lin, Ying Huang, Xianqing Huang, Xiang Li, Kao Chen, Bohan Zhao, Zhao Zhang
Summary: A novel Z-scheme beta-Bi2O3/g-C3N4 composite was synthesized by in-situ growth method, showing superior photocatalytic performance in degrading dyes and organic compounds under visible-light irradiation. The Z-scheme transfer path was strongly confirmed by various characterizations.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Xin Yu, Xianqing Huang, Ying Huang, Qingge Feng, Wenfu Chen, Chuanfu Ju, Yude Du, Tengfei Bai, Dongbo Wang
Summary: The crystal phase has a significant impact on the photocatalytic activity of Bi2O3. By preparing a novel alpha/beta-Bi2O3 hetero-phase junction through a simple solvothermal calcination method, the photocatalyst exhibited the highest activity at 400 degrees Celsius, showing significant improvement in tetracycline hydrochloride degradation compared to single crystal phase Bi2O3.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Environmental Sciences
Xiaofang Liang, Dongbo Wang, Mujin Li, Dunqiang Liu, Juncheng Han, Qianlan Wei, Youbin Huang, Hu Huang, Qingge Feng
Summary: This study investigated the removal of nitrogen and phosphorus from low C/N ratio rural domestic sewage using Fe-C mixed fillers. Laboratory-scale iron-carbon microelectronics system (IC-ME) and activated carbon system (AC) were established for purification. The results showed that the IC-ME system had higher removal rates for NO3--N, total nitrogen (TN), and total phosphorus (TP) compared to the AC system. All indicators met the discharge standards for sewage treatment plants and rural domestic sewage treatment facilities. Micro-electrolysis provided electrons for denitrification, while effective phosphorus removal was caused by iron anode corrosion and the formation of phosphate precipitates. The IC-ME system also had higher microbial abundance compared to the AC system. In conclusion, the IC-ME process offers a new strategy for treating domestic wastewater in rural areas with low C/N ratios.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Chemistry, Physical
Juncheng Han, Menghan Pang, Donghuan Meng, Jianrong Qiu, Dongbo Wang
Summary: Using low-density solar energy to convert it into chemical energy and drive the degradation of organic pollutants is a promising strategy for solving environmental pollution. In this study, a new type of heterojunction photocatalyst with a spherical Bi2Se3/Bi2O3@Bi core-shell structure was created and its degrading properties of organic pollutants were investigated. The photocatalytic properties of Bi2Se3/Bi2O3@Bi catalysts were found to be far superior to other materials, and a suitable photocatalytic mechanism was proposed. This research is expected to lead to the production of a novel bismuth-based compound photocatalyst to address the increasingly critical problem of environmental water pollution and provide new avenues for further environmental applications.
Article
Engineering, Environmental
Donghuan Meng, Ye Lei, Menghan Pang, Jianrong Qiu, Chenghua Fan, Yuyan Feng, Dongbo Wang
Summary: In the graphitic carbon nitride-based photocatalytic reaction, the redox ability and electron transport ability of the photocatalyst play a crucial role in its activity. A Photo-Fenton reaction system was developed by modifying N-doped carbon quantum dots (N-CQDs) on the surface of supramolecular self-assembled carbon nitride and introducing Fe ions into the carbon nitride planar structure. The xFe/N-CQDs/MCN1 catalysts with different iron contents showed efficient degradation of organic pollutants, with 0.2Fe/N-CQDs/MCN1 degrading 76% of ciprofloxacin (CIP) within 120 min. The surface modification of N-CQDs enhanced electron transfer rate and the doping of Fe ions provided active sites for the Fenton reaction, resulting in enhanced photocatalytic activity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Dongbo Wang, Xiyuan Dong, Ye Lei, Changqing Lin, Dan Huang, Xin Yu, Xuan Zhang
Summary: A hollow tubular carbon nitride photocatalyst co-doped with manganese and phosphorus (Mn-PCN) was synthesized, and its photocatalytic performance was greatly improved compared to pure carbon nitride (CN). The Mn-PCN showed high efficiency in degrading organic pollutants under visible light. The results provide new insights into the rational design of highly active catalysts with visible light sensitivity.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Ye Lei, Dongbo Wang, Junrong Ji, Jinsheng Yan, Xiyuan Dong, Juncheng Han, Xiaofang Liang, Qianlan Wei, Xianqing Huang, Xin Yu, Qingge Feng
Summary: The modification of photocatalyst morphology and structure with carbon quantum dots can significantly enhance their photocatalytic activity and degradation efficiency.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Zelin Su, Dongbo Wang, Xianqing Huang, Xiang Li, Xin Yu, Ying Huang, Qingge Feng
INTERNATIONAL JOURNAL OF GLOBAL WARMING
(2020)