Article
Chemistry, Physical
Xin Bai, Man Li, Jinlun Li, Xi Rao, Shaohui Zheng, Yongping Zhang
Summary: The study showed that sulfur and yttrium co-doped graphitic carbon nitride photocatalyst exhibits outstanding photocatalytic performance due to the doping improving the separation and migration of electron-hole pairs, narrowing the band gap, and increasing visible light absorption.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Haibing Che, Peng Hu, Jinshu Wang, Yongli Li, Wenyuan Zhou, Xiaobo Chen
Summary: A synergistic strategy integrating elemental doping and defect engineering has been developed to modulate the electronic and bandgap structure of g-C3N4. This strategy significantly improves the photocatalytic activity of g-C3N4 for hydrogen evolution, showing a twentyfold enhancement compared to pristine g-C3N4.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Yu-Xin Ye, Cheng Wen, Jinhui Pan, Jia-Wei Wang, Yuan-Jun Tong, Songbo Wei, Zhuofeng Ke, Long Jiang, Fang Zhu, Ningbo Zhou, Minjie Zhou, Jianqiao Xu, Gangfeng Ouyang
Summary: This study achieved efficient production of hydrogen peroxide at ambient conditions using an elaborately modified carbon nitride photocatalyst, presenting a potential example for truly sustainable and economical methods.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Ziyi Zhang, Zhangyi Xiong, Chuanchuan Zhao, Peijing Guo, Haijun Wang, Yongjun Gao
Summary: A carbon-coated TiO2 photocatalyst was successfully synthesized using a hydrolysis-carbonization strategy, with boric acid acting as a template to maintain particle size and butyl alcohol carbonized to enhance photocatalytic activity. The catalyst showed excellent hydrogen evolution ability and stability under Xenon lamp irradiation, with a band gap of 2.82 eV enabling hydrogen evolution under visible light. The presence of carbon on TiO2 reduced the band gap and improved photocatalytic activity for H2 evolution.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Kanging Liu, Jiliang Ma, Xiaopan Yang, Zhendong Liu, Xinze Li, Junqiang Zhang, Rui Cui, Runcang Sun
Summary: This study presents the development of a novel carbon nitride photocatalyst with phosphorus/oxygen co-doping for simultaneous visible-light-driven water splitting and biorefinery. The unique structure and co-doping technology significantly enhance the visible light absorption range and accelerate the migration/separation of photo-generated carriers.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Yelan Xiao, Yecheng Leng, Xinxin Lu, Shun-Cheung Cheng, Hao Huang, Man-Kit Tse, Jiechun Liang, Wenguang Tu, Chi-Chiu Ko, Xi Zhu, Lu Wang, Yong Zhou, Yingfang Yao, Zhigang Zou
Summary: Photocatalytic radical fluoroalkylation is an important method to prepare organofluorine compounds. This study introduces a cost-effective and recyclable heterogeneous photocatalysis using cyano-modified graphitic carbon nitride as the photocatalyst. The photocatalytic process is attributed to the long-lived triplet excited states and the strong interaction between the catalyst and substrate. Moreover, the catalyst shows high performance, wide reaction scope, and can be easily recovered and reused for multiple catalytic cycles.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Physical
Yun Zheng, Lili Zhang, Yuke Li, Yayun Wang, Jingling Chen, Bizhou Lin, Yanzhen Zheng, Lin Cheng, Sibo Wang, Yilin Chen
Summary: Researchers have successfully synthesized a novel D-A conjugated polymer, T-CN, and demonstrated its superior performance in visible-light photocatalytic reactions, including hydrogen evolution and carbon dioxide reduction. The successful preparation of T-CN paves the way for the rational design of efficient polymeric nanomaterials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Dongyang He, Hao Yang, Dexin Jin, Jiao Qu, Xing Yuan, Ya-nan Zhang, Mingxin Huo, Willie J. G. M. Peijnenburg
Summary: Research demonstrates that by tuning reaction parameters, the synthesized g-C3N4 can achieve extremely high photocatalytic activity, outperforming P25 TiO2 and other g-C3N4-based nanocomposites with lower catalyst consumption, and requiring only short ultrasonic pretreatment for excellent performance.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Xueyan Zhang, Guang Yang, Jiaqi Meng, Lang Qin, Miao Ren, Yue Pan, Yuxin Yang, Yihang Guo
Summary: Acetamide- or formamide-assisted in situ strategy has been developed to synthesize self-doped g-C3N4 (AHCN(x)) or nitrogen vacancy-modified g-C3N4 (FHCNx). The preorganization step of acetamide (or formamide) with urea via freeze drying-hydrothermal treatment allows precise regulation of the chemical structures and doping levels in AHCN(x) and the vacancy concentration in FHCNx. AHCN(x) and FHCNx demonstrate significantly enhanced visible-light photocatalytic performance for the oxidation of emerging organic pollutants and the reduction of proton to H-2 compared to unmodified g-C3N4, due to their different charge separation and transfer mechanisms and improved visible-light harvesting capacity and localized charge distributions.
Article
Chemistry, Physical
Hong Bao, Liang Wang, Gao Li, Li Zhou, Yun Xu, Zheng Liu, Minghong Wu
Summary: In this study, boron-doped carbon nitride nanotubes were designed and prepared, which significantly increased their specific surface area, active sites, graphitization degree, and hindered the recombination of photogenerated electron-hole pairs. Moreover, the boron-doped carbon nitride nanotubes exhibited a longer fluorescence lifetime and higher hydrogen evolution rate compared to tubular carbon nitride.
Article
Materials Science, Multidisciplinary
Xueru Chen, Yin Zhang, Dashui Yuan, Wu Huang, Jing Ding, Hui Wan, Wei-Lin Dai, Guofeng Guan
Summary: Porous g-C3N4 nanosheets (PCN) prepared by nickel-assisted thermal polymerization method exhibit superior Cr(VI) photocatalytic reduction efficiency compared to pure g-C3N4, attributed to increased layer spacing, enhanced specific surface area, and promoted effective photon absorption. Additionally, PCN formation of pores benefits Cr(VI) removal efficiency.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Review
Chemistry, Multidisciplinary
Amarajothi Dhakshinamoorthy, Anton Lopez-Frances, Sergio Navalon, Hermenegildo Garcia
Summary: Light can enhance ozone efficiency in advanced oxidation processes (AOPs) through direct ozone photolysis or by using a photocatalyst that can be excited by UV-Vis or solar light. This review summarizes literature data on the combination of ozone and the g-C3N4 photocatalyst for water treatment. The combination shows higher efficiency than the individual treatments, attributed to the synergy between g-C3N4's efficient electron quenching by O-3 and the generation of hydroxyl radicals.
Article
Chemistry, Multidisciplinary
Yan Chen, Li Tan, Hui Zhang, Xue Zhang, Qiyuan Chen, Haojie Jiang, Fengjuan Ge, Shuai Wei, Xinhua Gao, Peng Wang
Summary: A metal-free photocatalyst consisting of CNT and mpg-C3N4 was synthesized with improved photodegradation rate and stability, potentially enhanced by increased electron transfer and oxygen adsorption. This study offers a promising method for utilizing a stable, metal-free semiconductor driven by visible light for environmental remediation.
RESEARCH ON CHEMICAL INTERMEDIATES
(2021)
Article
Engineering, Environmental
Danila Vasilchenko, Angelina Zhurenok, Andrey Saraev, Evgeny Gerasimov, Svetlana Cherepanova, Sergey Tkachev, Pavel Plusnin, Ekaterina Kozlova
Summary: A highly active Pt/g-C3N4 photocatalyst was successfully prepared by successive combination of thermolysis, chemisorption, and reductive treatment. The prepared material showed remarkable photocatalytic activity in hydrogen evolution reaction, with a high rate of H-2 evolution per platinum atom loaded and among the highest reported net rates to date. The unique structure of the material, with a branchy net of pores, facilitated efficient access of reagents and expulsion of products, leading to the excellent performance. The self-catalyzed hydrogenation of the Pt/g-C3N4 composites played a crucial role in the formation of the noted morphology. The study demonstrated the potential of this approach for large-scale applications in hydrogen production.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Bingdi Wang, Chengkun Bai, Zhida Wang, Ping She, Hang Sun, Guolong Lu, Song Liang, Zhenning Liu
Summary: Phosphorus- and oxygen-codoped g-C3N4 (POCN) with enhanced photocatalytic performance was synthesized through a one-step process using ammonium polyphosphate (APP) as a phosphorus precursor. The introduction of APP changed the elemental composition and morphology of the obtained POCN, resulting in higher photocatalytic activity. POCN exhibited 2-fold increased H-2 evolution rate and 5-fold increased degradation rate of rhodamine B compared to pristine g-C3N4 under visible light. The improved photocatalysis was attributed to the larger surface area, abundant active sites, reduced diffusion distance, and efficient charge separation.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Zirui Wang, Haoxuan He, Junjian Zhao, Xiaoxia Jian, Changyong Liu, Zhida Gao Supervison, Yan-Yan Song
Summary: Researchers have developed an antibacterial film that addresses the low photocatalytic efficiency of titania (TiO2) and can combat hospital-acquired infections and antibiotic-resistant pathogens, which are significant threats to human health.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Analytical
A. Lan, Xinran Wang, Tianmeng Wang, Yanyan Song
Summary: In this study, a photoelectrochemical platform is constructed using TiO2 nanotube arrays coated with PbS nanocrystals, which shows a high photocurrent response. By replacing Pb(II) with Ag+ ions, the Ag2S components become new recombination centers for charge carriers, leading to a decreased photoelectrochemical response. Based on the reduced photocurrent, the PEC electrode demonstrates excellent sensing ability for trace Ag+ ions in a solution and high selectivity.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xiaoxia Jian, Jing Xu, Junli Guo, Junjian Zhao, Tian Shen, Zhida Gao, Yan-Yan Song
Summary: This study presents a new electrochemiluminescence sensing device based on a bio-inspired nanochannel membrane, which can accurately detect trace biomarkers in biological samples. By using a cascade-gates guarded nanochannel membrane, biological matrices can be effectively separated from the detection cell, enabling direct sensing of 1.0 nm cytochrome C at concentrations within the threshold of leukemia and lymphoma, making it suitable for point-of-care applications.
Article
Chemistry, Analytical
Zhechen Zhang, Haoxuan He, Junli Guo, Chenxi Zhao, Zhida Gao, Yan-Yan Song
Summary: Chiral recognition is a critical issue in the biomedical and pharmaceutical research fields. A power-free sensing platform based on bovine serum albumin (BSA) was proposed for sensitive chiral recognition of enantiomers. By measuring the output voltage, the enantioselectivity difference between L-Arg and D-Arg on a BSA-modified carbon substrate can be directly determined. The use of surface charges via the cyclization reaction between NO and O-phenylenediamine significantly enhances the sensitivity and specificity of enantioselective identification, with a limit of detection (LOD) as low as 76.0 nM. The flexible chips can function under deformation without sacrificing output performance, providing a new approach for the detection of chiral molecules and potential applications in wearable technology.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Huijie Xu, Junli Guo, Junjian Zhao, Zhida Gao, Yan-Yan Song
Summary: In this study, an enantioselective artificial architecture was constructed on TiO2 nanochannels, using homochiral Ti-based metal-organic frameworks (MOFs) as the skeleton, Fe(III) as peroxidase-mimicking centers, and L-tartaric acid (TA) as a chiral recognition selector. The selective recognition of cystine enantiomers was achieved through hydrogen bonds formed between chiral cystine and the host, and the change in peroxidase-like activity of the nanochannels was monitored through ionic current signatures.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Zhen-Kun He, Yongxin Lu, Jiahui Zhao, Junjian Zhao, Zhida Gao, Yan-Yan Song
Summary: Solar-driven photo-electrocatalysis using semiconductor photoelectrodes shows promise for sustainable and environmentally friendly energy utilization. However, the limitations of TiO2-based materials, including limited light absorption and low carrier density, hinder their practical applications. By engineering nanoarchitectured photocatalysts, their optical properties can be tailored to increase light-harvesting efficiencies.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Jing Xu, Xiaoxia Jian, Junli Guo, Junjian Zhao, Jie Tang, Yue Zhao, Jingwen Xu, Zhida Gao, Yan-Yan Song
Summary: Enantiomeric identification is crucial in various fields, and this study developed an enantioselective surface-enhanced Raman scattering (SERS) substrate for chiral molecule detection and quantification. The substrate integrated homochiral MIL-101(Fe) with oxidase (GOx)-mimicking Au nanoparticles (Au/Chiral-MIL-101(Fe)), which exhibited selective recognition abilities for Glu enantiomers. The hybrid nanoreactors demonstrated high catalytic performance and sensitivity, enabling the quantification of Glu enantiomers with a low limit of detection.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jiahui Zhao, Haoxuan He, Junli Guo, Zhenkun He, Chenxi Zhao, Haiquan Wang, Zhida Gao, Yan-Yan Song
Summary: In this study, a gas sensor with outstanding sensitivity and selectivity for the detection of hydrogen sulfide (H2S) at room temperature was constructed by integrating metal-organic frameworks (MOFs) into self-aligned TiO2 nanotube arrays (NTs). The sensing chips based on the as-prepared TiO2/CoBDC-NH2 NTs exhibited the highest-ranking H2S sensing performance, with a limit of detection of 1.3 ppb and excellent selectivity even to 100 times high concentration of interference gases.
Article
Chemistry, Multidisciplinary
Chenxi Zhao, Yanjian Li, Junjian Zhao, Hailong Li, Jingwen Xu, Zhida Gao, Chen Ding, Yan-Yan Song
Summary: This article introduces a double-layered test-to-treat pad for visual monitoring and selective treatment of drug-sensitive/drug-resistant bacterial infections. The pad consists of an inner layer for infection detection and inactivation of drug-sensitive bacteria, and an outer layer for antibacterial therapy. By utilizing this design, bacterial infections can be effectively controlled without antibiotic abuse, promoting wound healing.
Article
Engineering, Environmental
Yiming Wang, Min Li, Zirui Wang, Jing Xu, Junjian Zhao, Zhi-Da Gao, Yan-Yan Song
Summary: Pesticides pose a serious risk to public health, and the sensitive, rapid, visual, and on-site detection of pesticides in a real sample remains a challenge. This study presents a visual and rapid sensing device based on the photothermal effect, which can detect organophosphorus pesticides with excellent sensitivity, ease of application, and specificity. The device has the potential for real-time detection of pesticide residues in agricultural products.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Rongyang Kou, Haoxuan He, Yongxin Lu, Haiquan Wang, Jingwen Xu, Yan-Yan Song, Zhida Gao
Summary: A sensitive H2S sensing chip was developed based on Pt nanocluster decorated TiO2@ZnFe2O4 nanotube arrays for room temperature operation. The chip showed high sensing response and excellent specificity, benefiting from the plentiful defects induced by Pt nanocluster and the selectivity of ZnFe2O4 towards H2S. The sensing reactions of H2S were mainly triggered by the abundant energetic active defects in the absence of traditional thermal energy and UV irradiation. The resulting samples exhibited a remarkably high sensitivity for H2S with a low limit of detection and good selectivity, reproducibility, and long-term storage stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jing Xu, Ying Xu, Junhan Li, Junjian Zhao, Xiaoxia Jian, Jingwen Xu, Zhida Gao, Yan-Yan Song
Summary: The on-site screening of volatile aldehyde biomarkers for lung cancer is crucial for early diagnosis and treatment. This study presents a novel SERS sensing substrate using a Au/TiO2 NM with metal-organic frameworks and interfacial nanocavities to enhance capture and adsorption ability. The combination of machine learning and Raman spectroscopy allows for more accurate identification of gaseous analytes.
Article
Chemistry, Multidisciplinary
Zhen-Kun He, Jiahui Zhao, Keke Li, Junjian Zhao, Haoxuan He, Zhida Gao, Yan-Yan Song
Summary: The authors developed a formaldehyde sensor using a spaced TiO2 nanotube array as a scaffold and electron collector. The sensor showed high sensitivity, stability, reproducibility, and fast response and recovery times, making it suitable for medical diagnosis, environmental monitoring, and other intelligent sensing systems.
Article
Chemistry, Physical
Shanshan Qin, Junli Guo, Xuewen Chen, Ran Cao, Nikita Denisov, Yan-Yan Song, Patrik Schmuki
Summary: Researchers have successfully dispersed single platinum atoms in one-dimensional titanate hosts, creating a composite structure that is effective for photocatalytic hydrogen generation. This hybrid structure provides both stability and excellent light absorption and charge transfer properties, making it ideal for long-term hydrogen evolution under UV or simulated solar light.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Biomaterials
Junhan Li, Jingwen Xu, Yundian Liu, Jing Xu, Lingling Yang, Zhida Gao, Yan-Yan Song
Summary: By utilizing self-standing Au/TiO2 nanotubes as a surface-enhanced Raman spectroscopy (SERS) substrate, rapid and sensitive discrimination of bacterial contamination is achieved through the hydrophobic interaction between the volatile metabolites released from pathogenic bacteria and the SERS substrate. The SERS platform demonstrates good discrimination ability between benign and pathogenic bacteria within 4 minutes, allowing for the detection of Escherichia coli (E. coli) at low concentrations. This technique has the potential to serve as a guide for antibiotic treatment, offering reliable and rapid guidance for interrelated bacteria therapy.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
