Article
Chemistry, Physical
Ziyi You, Xiaoyang Yue, Dainan Zhang, Jiajie Fan, Quanjun Xiang
Summary: The study successfully prepared a novel 0D/2D heterojunction nanocomposite (Ag2S QDs/g-C3N4) with excellent photocatalytic performance, achieving a high hydrogen evolution rate and apparent quantum efficiency. The enhanced activity was attributed to energy band broadening of Ag2S QDs and efficient charge transfer between g-C3N4 and Ag2S QDs. Semiconductor-based quantum dots are shown to be strong candidates for excellent cocatalysts in photocatalysis.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Energy & Fuels
Guangyu Wu, Qi Liu, Guoyu Tai, Chengwei Zhou, Zhenhua Yan, Jiangang Han, Weinan Xing
Summary: In this study, a novel NSOD/CN van der Waals heterojunction photocatalyst was successfully synthesized to improve the efficiency of photocatalytic hydrogen production under visible light. The photocatalytic hydrogen production reached 1369.5 μmol h-1 g-1, which is 4.25 times higher than pure CN. The improved performance is attributed to the formation of the van der Waals heterojunction between NSOD and CN, which effectively promotes charge separation and electron transfer. The introduction of NSOD also enhances the visible light response of the photocatalyst.
Article
Chemistry, Inorganic & Nuclear
Qing Zhong, Wei-De Zhang, Qingshan Shi, Yu-Xiang Yu
Summary: The study successfully synthesized a composite catalyst for water disinfection by growing CQDs on Bi7O9I3 microsheets for the first time. The synergistic effect of the catalysts enhanced antibacterial and degradation activity by improving light absorption and promoting the separation of photogenerated charge carriers, ultimately leading to bacterial inactivation.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Engineering, Environmental
Kunqiao Li, Yanqiu Jiang, Wei Rao, Yudong Li, Xing Liu, Jian Zhang, Xianzhu Xu, Kaifeng Lin
Summary: A novel carbon nitride nanosheet, CDs anchored and S, Cl co-doped carbon nitride (CSCl-C3N4), is designed and fabricated to strengthen the interfacial connection of g-C3N4/CDs. The composite exhibits remarkably enhanced photocatalytic performance for water splitting and photodegradation of tetracycline.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Liang Shi, Jiangning Yin, Yanru Liu, Hanqiong Liu, Hao Zhang, Hua Tang
Summary: The development of highly efficient photocatalysts is crucial for solving environmental pollution. This study fabricated a novel S-scheme heterojunction by integrating Cu3P quantum dots with BiOCl nanosheets, which exhibited excellent photocatalytic activity for antibiotic degradation. Cu3P QDs acted as an effective cocatalyst and provided inspiration for future design of green recycling photocatalysts.
Article
Chemistry, Physical
Peijie Ma, Xu Zhang, Cong Wang, Zhiwei Wang, Kaiwen Wang, Yibo Feng, Jiaxing Wang, Yadi Zhai, Jiguang Deng, Lihua Wang, Kun Zheng
Summary: The homojunction structure of anchoring CN quantum dots (QDs) onto g-C3N4 nanosheets resulted in a significantly improved photocatalytic efficiency for producing hydrogen peroxide (H2O2). The band alignment and electron-hole separation provided by the homojunction structure, along with the suppressed recombination from QDs, contributed to the enhanced performance. This design could be extended to other materials with specific band alignment for further applications.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Environmental Sciences
Kailin Xu, Qiuya Zhang, Chuqiao Wang, Jinmei Xu, Yiming Bu, Bin Liang, Yushuai Liu, Liping Wang
Summary: In this study, a series of 0D boron carbon nitride quantum dots (BCNQDs) modified 2D Bi4O5I2 (0D/2D Bi4O5I2/BCNQDs) composites were synthesized and applied to photodegradation of tetracyclines (TCs), including tetracycline (TC) and oxytetracycline (OTC). The optimal composite Bi4O5I2/BCNQDs (1 mL BCNQDs) exhibited the highest photocatalytic performance, with degradation rate constants for TC and OTC being 4.95 and 2.17 times higher than that of Bi4O5I2, respectively. This can be attributed to the narrow bandgap property of Bi4O5I2 as an electron acceptor, and the oxygen-containing functional group with negative charge on BCNQDs promoting the formation of photoexcited holes for effective carrier separation.
Article
Materials Science, Multidisciplinary
Yibin Chen, Dan Luo, Yuelin Wei, Haining Liu, Yunfang Huang, Leqing Fan, Jihuai Wu
Summary: A novel CdSe/HSr2Nb3O10 n-n heterojunction was synthesized by hydrothermal reaction of CdSe quantum dots anchored on HSr2Nb3O10 nanosheets with microwave heating. The physicochemical properties of the composite were studied using various characterization techniques. The enhanced photocatalytic activity of the heterojunction was attributed to the n-n interface and the increased visible-light region. The CE50/HSNO-ns photocatalyst showed the highest photo-degradation efficiency, decomposing MO solution completely in just 5 minutes under visible light irradiation (lambda > 420 nm).
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Chemistry, Physical
Zhongqi Zan, Xibao Li, Xiaoming Gao, Juntong Huang, Yidan Luo, Lu Han
Summary: The study reports the composite of zero-dimensional g-C3N4 quantum dots (CNQDs) with two-dimensional BiOBr for the first time using the hydrothermal method. The formed 0D/2D CNQD/BiOBr S-scheme heterojunction exhibited enhanced photocatalytic activity and stability due to the interaction between CNQDs and BiOBr. The results will provide reference for the construction of 0D/2D S-scheme heterojunctions for the degradation of organic pollutants and in situ production of H2O2.
ACTA PHYSICO-CHIMICA SINICA
(2023)
Article
Energy & Fuels
Rihong Xiao, Yili Zhang, Zhuo Xiong, Junying Zhang, Yongchun Zhao
Summary: Photocatalytic technology has the advantages of being environmentally friendly, low energy consumption, and fast reaction speed, and can be applied in the field of visible light mercury removal. The hydrothermal synthesis of CQDs/2D-BWO composite catalyst was proposed to improve the oxidation efficiency of elemental mercury, and it showed high removal efficiency under visible light and good stability.
Article
Materials Science, Multidisciplinary
Chen Li, Tianyi Sun, Dashuai Zhang, Xiaopeng Zhang, Yan Zhang, Xiaoxue Lin, Jinrui Liu, Linhua Zhu, Xianghui Wang, Zaifeng Shi, Qiang Lin
Summary: The 0D/2D carbon quantum dots/g-C3N4 isotype heterojunctions were successfully prepared using a simple microwave-assisted polymerization method. These composites exhibit excellent photocatalytic performance and a high degradation rate of norfloxacin, which is twice as high as that of pristine g-C3N4. The goal of this work is to establish a simple and environmentally friendly method for preparing 0D/2D composites.
Article
Engineering, Environmental
Chonghai Deng, Tao Wang, Fan Ye, Xiaohui Ling, Lulu Peng, Hanmei Hu, Hong Yu, Kangze Ding, Yiping Wu, Qian Dong, Huirong Le, Yongsheng Han
Summary: A novel CuO/BiOBr composite photocatalyst with p-n heterojunction was fabricated, showing greatly enhanced photocatalytic activity in degrading benzene-containing pollutants under visible light irradiation. The improved activity is attributed to the appropriate p-n heterojunction between CuO and BiOBr.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Zhongkai Xie, Yuyan Xu, Di Li, Lijie Chen, Suci Meng, Deli Jiang, Min Chen
Summary: The construction of Z-scheme heterojunction using CuO quantum dots and WO3 nanosheets has shown enhanced photocatalytic CO2 reduction performance under visible-light irradiation, achieving efficient charge carriers separation and superior redox ability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Shu Mengyang, Lu Jialin, Zhang Zhijie, Shen Tao, Xu Jiayue
Summary: Metal-halide perovskite quantum dots (QDs) have been developed as a potential photocatalyst, but their stability and charge transportation efficiency limitations hinder their applications. By decorating CsPbBr3 QDs on two-dimensional g-C3N4 (UCN) nanosheets, a composite photocatalyst with improved stability and charge transfer efficiency was successfully developed, showing superior photocatalytic performance compared to pristine CsPbBr3 QDs and UCN. This work provides an efficient strategy for designing CsPbX3-based heterostructures with high stability and photocatalytic activity.
JOURNAL OF INORGANIC MATERIALS
(2021)
Article
Energy & Fuels
Rak Hyun Jeong, Ji Won Lee, Dong In Kim, Jin-Hyo Boo
Summary: Photocatalytic hydrogen generation, with SnS as the catalyst, has emerged as an important technology for eco-friendly green hydrogen production. The synthesis of 0D/2D SnS multi structures using hydrothermal methods has shown that a wider and tuned band gap in SnS leads to more efficient photocatalytic applications. SnS acts as a donor/acceptor in heterojunctions, increasing the lifetime and reducing the electron-hole recombination rate. Designing and fabricating bandgap energy-matched nanocomposite photocatalysts could be a promising direction for future clean energy solutions.
Article
Chemistry, Multidisciplinary
Jun Xiong, Haoxue Huang, Bo Lin, Jiexiang Xia, Jun Di
Summary: This study successfully synthesized BiPO4 photocatalysts with controllable oxygen vacancy concentrations and found that BiPO4 materials with lower oxygen vacancy concentration exhibited unexpectedly higher photocatalytic efficiency, which can be enhanced by adjusting the energy band structure.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Yi Zhang, Guangpu Zhang, Jun Di, Jiexiang Xia
Summary: This mini review discusses the limitations of single bismuth-based materials in CO2 conversion and proposes strategies for their optimization, including composition modulation, structure regulation, single-atom engineering, heterogeneous junction strategy, and reaction system optimization from both thermodynamic and kinetic perspectives.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Article
Engineering, Environmental
Jun Zhou, Jialiang Luo, Hu Guo, Jun Di, Gazi Hao, Yubing Hu, Lei Xiao, Wei Jiang
Summary: In this study, we have reported a novel two-dimensional nanosheets-like heterostructure, CoB/BNC, which is constructed by a molten salt-assisted dissolution-growth strategy. The strong interfacial electronic interactions in the heterostructure contribute to enriching polarization effects and boosting the electromagnetic absorption performance. The as-prepared CoB/BNC absorber coating achieves a minimum reflection loss of -70.76 dB and an effective absorption bandwidth of 4.72 GHz at a thickness of 3.48 mm, showing great potential for developing innovative electromagnetic absorption materials in the aerospace.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jiantian Zhang, Wei Xu, Liming Wang, Zhaoqiang Zheng, Fucai Liu, Peng Yu, Guowei Yang
Summary: Band engineering can effectively tune the properties of materials, leading to improved performance. In this study, the first two-dimensional quaternary quantum dots (CIPS) were successfully fabricated using the lithium intercalation method. By forming lithium-induced phosphorus and sulfur vacancies, the band structure of CIPS was tuned, resulting in stronger optical absorbance and higher conductivity. The CIPS quantum dots exhibited outstanding optoelectronic performances in broadband photodetection, retaining excellent photoresponse on flexible substrates and in imaging applications.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Physical
Pin Song, Shiqiang Wei, Jun Di, Jun Du, Wenjie Xu, Daobin Liu, Changda Wang, Sicong Qiao, Yuyang Cao, Qilong Cui, Pengjun Zhang, Liaobo Ma, Jiewu Cui, Yan Wang, Yujie Xiong
Summary: Sodium-ion batteries (SIBs) are promising for large-scale energy storage due to abundant and cheap sodium resources, but developing anode materials with sufficient space for sodium ion intercalation remains challenging. This study presents hard carbon microtubes (HCTs) with tunable apertures derived from low-cost natural kapok fibers, which have a unique micro-nano structure, smaller surface area, and shorter Na+ diffusion path. The wall thickness of HCTs can be regulated and controlled by carbonization temperature, and HCTs carbonized at 1600 degrees C show the smallest wall thickness, leading to enhanced reversibility of Na+ storage. The 1600HCTs exhibit a high initial Coulombic efficiency, good cycling stability, and excellent rate capacity. This work not only provides a new approach for preparing hard carbon materials with suitable ion channels and novel tubular micro-nano structures, but also reveals the mechanism of hard carbon materials for sodium storage.
Article
Energy & Fuels
Jun Di, Yan Li, Yi Zhang, Yiling Liu, Suwei Wang, Yao Wu, Huaming Li, Jiexiang Xia
Summary: Novel graphene-like boron nitride (BN)/Bi3O4Br photocatalysts were synthesized controllably for the first time through a facile solvothermal method. Layer contact stacking between graphene-like BN and ultrathin Bi3O4Br was achieved with strong interaction. Dehalogenation and ultrathin structure of Bi3O4Br were designed to enhance visible light absorption and accelerate charge transfer, resulting in greatly improved photocatalytic performance. Graphene-like BN acted as a surface electron-withdrawing center and adsorption center, facilitating molecular oxygen activation. O-2(center dot-) was identified as the main active species during the degradation process.
TRANSACTIONS OF TIANJIN UNIVERSITY
(2023)
Article
Chemistry, Physical
Yi Zhang, Jun Di, Xingwang Zhu, Mengxia Ji, Chao Chen, Yanan Liu, Lina Li, Tiange Wei, Huaming Li, Jiexiang Xia
Summary: This study designs oxygen-vacancy-rich Bi2Sn2O7 (BSO) and Bi-O vacancy pairs on ultrathin BiOBr (BOB) to construct a chemical bonding interface, forming a Bi2Sn2O7/BiOBr (BSOB) S-scheme heterojunction. BSOB exhibits efficient photocatalytic nitrogen reduction performance.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Yihai Zhou, Pin Song, Meng Pan, Hong Wang, Zhongying Liu, Jun Di, Daobin Liu, Jingxiang Low, Renchun Yang
Summary: In this study, a super hydrophilic-electrons acceptor was developed by grafting abundant -C=O and -OH functional groups onto rutile TiO2 nanorods surface. The results showed that TiO2-CA with three -C=O groups and three carboxy-(-OH) groups exhibited a higher H2 production activity (48.5 mmol·h(-1)·g(-1)) and a contact angle of 1.48°, whereas TiO2-PA with only lacking one alcohol-(-OH) group showed a decreased H2 production activity (19.3 mmol·h(-1)·g(-1)) and a contact angle of 30.95°. This study demonstrates that the super hydrophilic-electrons acceptor is crucial for the photocatalytic activity of TiO2.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Yi Zhang, Fangyu Guo, Keke Wang, Jun Di, Bokki Min, Huiyuan Zhu, Hailong Chen, Yu-Xiang Weng, Jiayu Dai, Yuanbin She, Jiexiang Xia, Huaming Li
Summary: Insufficient charge separation and feeble CO2 activation can be improved by constructing organic-inorganic hybrid composites. The defect-induced interfacial Bi-O bridge bond accelerates the electron extraction and transfer, while the optimized active sites, Co atoms, enhance CO2 adsorption and activation. The CO2 photoreduction efficiency is increased significantly in the presence of 0.5% Co-TCPP/Bi3O4Br.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Inorganic & Nuclear
Jun Di, Gazi Hao, Guigao Liu, Jiadong Zhou, Wei Jiang, Zheng Liu
Summary: This review article summarizes the advantages, state-of-the-art progress, remaining challenges, and perspectives of defective materials, especially two-dimensional materials, for CO2 photoreduction. Different types of defects are employed to tailor the electronic structure, atomic coordination configuration, and carrier concentration for CO2 photoreduction. Strategies for defect construction and identification are summarized, as well as the key roles of various defects in CO2 photoreduction. The challenges and opportunities for future exploration of defective materials for CO2 photoreduction are also presented.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Multidisciplinary Sciences
Jun Cui, Emil Vinas Bostroem, Mykhaylo Ozerov, Fangliang Wu, Qianni Jiang, Jiun-Haw Chu, Changcun Li, Fucai Liu, Xiaodong Xu, Angel Rubio, Qi Zhang
Summary: The research team observed magnon-induced chiral phonons and chirality selective magnon-phonon hybridization in the antiferromagnet FePSe3, which provides new insights for the development of angular momentum-based hybrid phononic and magnonic devices.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Hang Xia, Xiaoru Sang, Zhiwen Shu, Zude Shi, Zefen Li, Shasha Guo, Xiuyun An, Caitian Gao, Fucai Liu, Huigao Duan, Zheng Liu, Yongmin He
Summary: Investigating the conductance problem in reaction windows, this study provides guidelines for conducting reliable microcell measurements on non-metallic single nanowire/nanosheet catalysts, aiming to enhance the efficiency of catalysis and measurement reproducibility.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Dongqi Liu, Qiangqiang Lu, Chunlei Xuan, Lei Xiao, Fengqi Zhao, Xiaojun Feng, Kun Zhang, Jun Di, Wei Jiang, Gazi Hao
Summary: In this work, CuO was in situ generated on the Ti3C2Tx MXene surface by using electrostatic self-assembly. The in situ generation method successfully led to the dense formation of CuO on the MXene surface and even development of CuO lamellar structures, while the mechanical mixing method resulted in poor CuO distribution on MXene. The addition of I-Ti3C2Tx/CuO effectively reduced the pyrolysis peak temperature and increased the heat release in the thermal decomposition of TKX-50.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Qing Liu, Er Pan, Hao Deng, Fucai Liu, Jing-Feng Li
Summary: A novel Dy3+ doped KNN-based lead-free multifunctional fluorescent ferroelectric ceramics were investigated in this study. The ceramics showed good and thermally stable piezoelectricity, as well as efficient luminescence. With these properties, the Dy3+ modified KNN-based ceramics hold great promise for optoelectronic multifunctional devices.
INORGANIC CHEMISTRY FRONTIERS
(2023)
