期刊
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
卷 636, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.colsurfa.2021.128156
关键词
Multiscale cellulose fibers; Nano-/micro- ratio; ZnO flower/sheet ratio; Mechanical property; Photocatalytic
资金
- National Natural Science Foundation of China [22078162, 31870565]
- China Postdoctoral Science Foundation [2020M671505]
- University Science Research Project of Jiangsu Province [20KJB220011]
Multiscale fibers were used to improve the photocatalytic and recycling properties of ZnO/cellulose composites. The ZnO flower/sheet ratio could be adjusted by the multiscale cellulose fibers, with an increasing nano-/micro- ratio leading to an increase in the ZnO flower/sheet ratio. The composite membrane with the highest ZnO flower/sheet ratio exhibited the best photocatalytic performance, while the composite membrane with a reasonable nano-/micro- ratio showed excellent wet strength.
Multiscale fibers with different nano-/micro- ratios were innovatively introduced to improve the photocatalytic and recycling properties of single-scale ZnO/cellulose composites via a simple papermaking process. ZnO flower/ sheet ratio was adjusted by multiscale cellulose fiber with different fibrillation indexes, indicating that ZnO flower/sheet ratio increased with the increasing nano-/micro- ratio in multiscale fibers. The ZnO/CFR12 composite membrane with the highest ZnO flower/sheet ratio exhibited the best photocatalytic performance (the degradation rate of MO, phenol, and aniline were 95.44%, 100%, and 82.39%, respectively). The ZnO/CFR6 composite membrane with reasonable nano-/micro- ratio showed excellent wet strength (tensile stress of 0.67 +/- 0.02 MPa), which was 3.19 times to ZnO/CFR12. The prepared ZnO/CFR composite membrane with good photocatalytic activity, stable photodegradation process, simple recycling procedure, and environmental friendliness has the potential to be an emerging environmental functional material.
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