Abstract
A new type of nanofiber membrane was prepared by mixed electrospinning of cellulose diacetate and amino-terminated hyperbranched polymer (HBP-NH2), and glutaraldehyde (GA) crosslinking was used to improve its water resistance and shape retention. pH, adsorption time, and initial solution concentration on Cu(ii) and Cr(vi) ions were studied. Results showed that the prepared GA-CDA/HBP-NH2 nanofiber had good spinning uniformity, hydrophilicity, and adsorption effect on Cu(ii) and Cr(vi) ions compared with the pure CDA nanofiber. The maximum adsorption capacity of GA-CDA/HBP-NH2 for Cu(ii) and Cr(vi) was 50.2 and 176.6 mg g−1, respectively.
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