A Novel Routine for the Fabrication of Y-Type Oxotitanium Phthalocyanine Nanocrystals in High-Gravity Rotating Packed Beds

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• 作者：Kai Wu ; Miao-Ling Xie ; Jian-Feng Chen ; Yuan Le
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2016
• 出版时间：June 22, 2016
• 年：2016
• 卷：55
• 期：24
• 页码：6753-6759
• 全文大小：446K
• 年卷期：0
• ISSN：1520-5045

文摘

In this work, external circulation rotating packed bed (EX-RPB) was combined with internal circulation rotating packed bed (IN-RPB) for the preparation of Y-type oxotitanium phthalocyanine nanocrystals (Y-TiOPc NCs) for the first time. The operating conditions in EX-RPB and in IN-RPB were investigated in detail. X-ray diffraction (XRD), transmission electron microscopy (TEM), ultraviolet–visible (UV-vis) absorption spectroscopy analysis, and elemental analysis were performed, and xerographic properties were analyzed, to characterize the products. The experimental results indicated Y-TiOPc NCs with the average size of 6 nm were successfully prepared. The Q-band absorption peak of Y-TiOPc NCs centered at 782 nm, implying their potential application in the xerographic photoreceptors of laser printers. The photoreceptor fabricated with Y-TiOPc NCs exhibited an initial surface potential of 703.56 V, a photosensitivity of 0.166 μJ/cm², a residual potential of 26.48 V, and a dark decay rate of 10.64 V/s. This work made a significant improvement to control the crystal form of nanoparticles at a large scale.