Piezocatalytic Foam for Highly Efficient Degradation of Aqueous Organics
Jidong Shi,
Wei Zeng,
Zhaohe Dai,
Liu Wang,
Qi Wang,
Shuping Lin,
Ying Xiong,
Su Yang,
Songmin Shang,
Wei Chen,
Lingyu Zhao,
Xujiao Ding,
Xiaoming Tao,
Yang Chai
Affiliations
Jidong Shi
Research Centre for Smart Wearable Technology Institute of Textiles and Clothing Hong Kong Polytechnic University Hong Kong 999077 China
Wei Zeng
Research Centre for Smart Wearable Technology Institute of Textiles and Clothing Hong Kong Polytechnic University Hong Kong 999077 China
Zhaohe Dai
Center for Mechanics of Solids, Structures and Materials Department of Aerospace Engineering and Engineering Mechanics The University of Texas at Austin Austin TX 78712 USA
Liu Wang
Department of Materials Science & Engineering Centers for Mechanical Engineering Research and Education at MIT and SUSTech Southern University of Science and Technology Shenzhen 518055 China
Qi Wang
Department of Materials Science & Engineering Centers for Mechanical Engineering Research and Education at MIT and SUSTech Southern University of Science and Technology Shenzhen 518055 China
Shuping Lin
Research Centre for Smart Wearable Technology Institute of Textiles and Clothing Hong Kong Polytechnic University Hong Kong 999077 China
Ying Xiong
Research Centre for Smart Wearable Technology Institute of Textiles and Clothing Hong Kong Polytechnic University Hong Kong 999077 China
Su Yang
Research Centre for Smart Wearable Technology Institute of Textiles and Clothing Hong Kong Polytechnic University Hong Kong 999077 China
Songmin Shang
Research Centre for Smart Wearable Technology Institute of Textiles and Clothing Hong Kong Polytechnic University Hong Kong 999077 China
Wei Chen
Research Centre for Smart Wearable Technology Institute of Textiles and Clothing Hong Kong Polytechnic University Hong Kong 999077 China
Lingyu Zhao
Department of Materials Science & Engineering Centers for Mechanical Engineering Research and Education at MIT and SUSTech Southern University of Science and Technology Shenzhen 518055 China
Xujiao Ding
Research Centre for Smart Wearable Technology Institute of Textiles and Clothing Hong Kong Polytechnic University Hong Kong 999077 China
Xiaoming Tao
Research Centre for Smart Wearable Technology Institute of Textiles and Clothing Hong Kong Polytechnic University Hong Kong 999077 China
Yang Chai
Research Centre for Smart Wearable Technology Institute of Textiles and Clothing Hong Kong Polytechnic University Hong Kong 999077 China
Piezoelectric catalysis (piezocatalysis) is a physical/chemical process that utilizes piezoelectric potential for accelerating chemical reactions, in which ubiquitous mechanical energies in nature are used for various catalysis applications, e.g., treating organic water pollutants. Despite the high efficiency achieved by piezocatalytic powders, the particles used tend to diffuse in water systems and are hard to be separated, thus causing secondary pollution. Herein, a free‐standing piezocatalytic foam is designed and fabricated, which is composed of BaTiO3 nanoparticles embedded in the PVDF scaffold. The as‐prepared PVDF–BaTiO3 composite foam demonstrates outstanding piezocatalytic efficiency in removing aqueous organics among state‐of‐the‐art integral piezocatalytic platforms, which lie in the synergy of piezoelectric materials and abundant interconnected pores within the foam. Significantly, PVDF–BaTiO3 foam is further applied for purifying natural water samples, by which the permanganate index of the water sample reduces by nearly 30% after 2 h of treatment. In addition, as a monolithic platform, PVDF–BaTiO3 foam is easy to be collected, with high reuse stability and applicability for treating various pollutants, resulting in dominant advantages over powder‐based systems for practical high‐flux wastewater treatment. Herein, a piezocatalytic platform is provided for the effective degradation of organic pollutants in water, with minimal environmental side effects.
