Dingxiang Chen

Yunnan Normal University

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Huabin Wang

Yunnan Normal University

Yong Zhang

Yunnan Normal University

Rui Xu

Stanford University

Ting Cui

Yunnan Normal University

Yi Wen

Affiliated Hospital of North Sichuan Medical College

Ran Duan

Chinese Academy of Sciences

Ying Zhang

Chengdu University of Traditional Chinese Medicine

Ahmad Bayiz Ahmad

University of Raparin

Xiaobao Peng

University of Science and Technology of China

Ran Duan

Yunnan Normal University

Cooperative Institutions

Yunnan Normal University

Chinese Academy of Sciences

University of Chinese Academy of Sciences

University of Science and Technology of China

Shanghai Jiao Tong University

Chongqing University

Kunming University of Science and Technology

Central South University

Huazhong University of Science and Technology

Zhejiang University

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Analysis of SMEs’ Commercialization Models under the Paradigm of Open Innovation Based on Eight SMEs’ Cases

Keji Guanli Yanjiu (2017)

Xiaobao Peng Dingxiang Chen Xiaoyan Song Shanwei Liu

Open Innovation

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How to Fuel Public Employees’ Change-Oriented Organizational Citizenship Behavior: A Two-Wave Moderated Mediation Study

Review of Public Personnel Administration (2021)

Dingxiang Chen Ying Zhang Ahmad Bayiz Ahmad Bangcheng Liu

Determining how to stimulate public employees’ change-oriented organizational citizenship behavior (OCB) has become a critical issue in both theory and practice. This article draws on the theories of job demands-resources (JD-R), leadership, and public service motivation (PSM) to propose a moderated mediation model to explore how empowering leadership shapes public employees’ change-oriented OCB. We conducted a two-wave investigation of 267 public employees in a large metropolitan city in Northern China to test this study’s hypotheses. The results show that empowering leadership significantly predicts employees’ change-oriented OCB by enhancing job crafting. Furthermore, PSM moderates the relationship between empowering leadership and job crafting. These findings advance our understanding of how to motivate employees’ change-oriented OCB from the perspective of empowering leadership in public organizations.

Public Service Motivation

Moderated mediation

10.1177/0734371x211052675

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Citations (31)

Selenite elimination via zero-valent iron modified biochar synthesized from tobacco straw and copper slag: Mechanisms and agro-industrial practicality

Frontiers in Bioengineering and Biotechnology (2022)

Qiong Luo Dingxiang Chen Ting Cui Ran Duan Yi Wen

Cost-effectively improving the performance of biochar is essential for its large-scale practical application. In this work, the agro-industrial by-products copper slag and tobacco straw were employed for the preparation of modified biochar (CSBC). The obtained CSBC exhibited satisfactory capacity on Se(IV) immobilization of 190.53 mg/g, with surface interactions determined by the monolayer and mainly chemisorption. The removal mechanisms included chemical reduction, electrostatic attraction, co-precipitation, and formation of complexations. Interestingly, the existence of Cu2Se structure after adsorption indicated the involvement of Cu species within Se(IV) elimination. Moreover, the industrial agricultural practicality of CSBC was evaluated by regeneration tests, economic assessment, and pot experiments. The results demonstrate that iron species-modified biochar prepared from two agro-industrial by-products is a promising and feasible candidate for selenite removal from wastewater.

Chemisorption

Agricultural waste

Industrial wastewater treatment

Slag (welding)

Industrial waste

10.3389/fbioe.2022.1054801

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Simultaneously Cationic and Anionic Dyes Elimination via Magnetic Hydrochar Prepared from Copper Slag and Pinewood Sawdust

Toxics (2023)

Huabin Wang Yi Wu Yi Wen Dingxiang Chen Jiang Pu

In practical wastewater, cationic and anionic dyes usually coexist, while synergistic removal of these pollutants is difficult due to their relatively opposite properties. In this work, copper slag (CS) modified hydrochar (CSHC) was designed as functional material by the one-pot method. Based on characterizations, the Fe species in CS can be converted to zero-valent iron and loaded onto a hydrochar substrate. The CSHC exhibited efficient removal rates for both cationic dyes (methylene blue, MB) and anionic dyes (methyl orange, MO), with a maximum capacity of 278.21 and 357.02 mg·g-1, respectively, which was significantly higher than that of unmodified ones. The surface interactions of MB and MO between CSHC were mimicked by the Langmuir model and the pseudo-second-order model. In addition, the magnetic properties of CSHC were also observed, and the good magnetic properties enabled the adsorbent to be quickly separated from the solution with the help of magnets. The adsorption mechanisms include pore filling, complexation, precipitation, and electrostatic attraction. Moreover, the recycling experiments demonstrated the potential regenerative performance of CSHC. All these results shed light on the co-removal of cationic and anionic contaminates via these industrial by-products derived from environmental remediation materials.

Cationic polymerization

Methyl orange

Langmuir adsorption model

Methylene blue

Sawdust

10.3390/toxics11060484

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Citations (5)

Taloring sawdust derived hydrochar via red mud for cadmium removal: Electron transfer insight and recyclability assessment

Chemosphere (2024)

Ting Cui Dingxiang Chen Ran Duan Fan Yang Danting Li

Red Mud

Sawdust

10.1016/j.chemosphere.2024.143924

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Cadmium Elimination via Magnetic Biochar Derived from Cow Manure: Parameter Optimization and Mechanism Insights

Processes (2023)

Yi Wen Dingxiang Chen Yong Zhang Huabin Wang Rui Xu

Designing an efficient and recyclable adsorbent for cadmium pollution control is an urgent necessity. In this paper, cow manure, an abundant agricultural/animal husbandry byproduct, was employed as the raw material for the synthesis of magnetic cow manure biochar. The optimal preparation conditions were found using the response surface methodology model: 160 °C for the hydrothermal temperature, 600 °C for the pyrolysis temperature, and Fe-loading with 10 wt%. The optimal reaction conditions were also identified via the response surface methodology model: a dosage of 1 g·L−1, a pH of 7, and an initial concentration of 100 mg·L−1. The pseudo-second-order model and the Langmuir model were used to fit the Cd(II) adsorption, and the adsorption capacity was 612.43 mg·g−1. The adsorption was dominated by chemisorption with the mechanisms of ion-exchange, electrostatic attraction, pore-filling, co-precipitation, and the formation of complexations. Compared to the response surface methodology model, the back-propagation artificial neural network model fit the Cd(II) adsorption better as the error values were less. All these results demonstrate the potential application of CM for Cd(II) removal and its optimization through machine-learning processes.

Langmuir adsorption model

Chemisorption

10.3390/pr11082295

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Iron-rich red mud and iron oxide-modified biochars: A comparative study on the removal of Cd(II) and influence of natural aging processes

Chemosphere (2023)

Huabin Wang Dingxiang Chen Yi Wen Yong Zhang Ying Liu

Red Mud

10.1016/j.chemosphere.2023.138626

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Citations (9)