文章信息/Info

Title:

Green Preparation of Y-Type Titanyl Phthalocyanine Nanoparticles and Their Crystal Stability Investigation

作者:

孫煜偉; 吳藝凡; 王雪鵬; 李祥高; 王世榮; 肖殷

天津大學化工學院

Author(s):

SUN Yuwei; WU Yifan; WANG Xuepeng; LI Xianggao; WANG Shirong; XIAO Yin

School of Chemical Engineering, Tianjin University

關鍵詞:

Y型酞菁氧鈦;  綠色制備;  溶劑回收;  晶型穩定性;  有機光導體

Keywords:

Y-TiOPc;  green preparation;  solvent recovery;  crystalline stability;  organic photoconductor

DOI:

10.7502/j.issn.1674-3962.201804007

文獻標志碼:

A

摘要:

研究了采用三氟乙酸/1,2-二氯乙烷(CF3COOH/1,2-C2H4Cl2)體系制備Y型酞菁氧鈦（Y-TiOPc）納米粒子的綠色工藝，采用酸堿中和/強酸置換法和常壓蒸餾法對CF3COOH/1,2-C2H4Cl2體系制備Y-TiOPc過程中的酸溶溶劑進行回收，減少了CF3COOH和1,2-C2H4Cl2的排放，回收的試劑達到可再利用標準。研究了采用CF3COOH/1,2-C2H4Cl2體系所制備的Y-TiOPc納米粒子的晶型穩定性，結果表明，采用該體系制備的Y-TiOPc納米粒子在超聲和球磨中的晶型穩定性均優于傳統濃硫酸工藝制備的Y-TiOPc納米粒子，其晶型經過4 h超聲和球磨處理不會向最穩定的β-TiOPc轉化，完全滿足制備有機光導體的電荷產生層時必須的球磨或超聲分散工藝要求。最后，將所制備的Y-TiOPc納米粒子作為電荷產生材料應用于多層有機光導體研究了其光電性能。并研究了析出溫度對Y-TiOPc納米粒子光電性能的影響，在析出溫度為0 ℃時材料性能最優，所制備的有機光導體的性能參數為V0=828.7 V、E1/2=0.09 μJ/cm2、Vr=33.7 V和Rd=20.3 V/s。

Abstract:

This research is to study the green process for the preparation of Y-TiOPc nanoparticles with CF3COOH/1,2-C2H4Cl2 system. The acid-soluble solvent produced in the preparation of Y-TiOPc was recovered by acid-base neutralization followed by strong acid displacement and atmospheric distillation, which could obviously reduce the emissions of both CF3COOH and 1,2-C2H4Cl2, the recovered solvents reach the reuse standards. The crystal stability of the prepared Y-TiOPc nanoparticles was investigated. The results revealed that Y-TiOPc nanoparticles prepared with CF3COOH/1,2-C2H4Cl2 system show much better crystal phase stability than those prepared by traditional concentrated sulfuric acid process. No crystal form transformation from Y-TiOPc to β-TiOPc is observed through the ball-milling or ultrasonic treatment within 4 h, which satisfies the stability requirement in the organic photoconductors (OPC) fabrication process. Finally, the prepared Y-TiOPc nanoparticles were applied in OPCs to evaluate their photoelectric properties. The influence of precipitation temperature of Y-TiOPc nanoparticles for the OPC property was investigated and the optimal precipitation temperature is confirmed as 0 ℃. The property parameter of the OPC fabricated by Y-TiOPc nanoparticles precipitated at 0 ℃ are V0=828.7 V, E1/2=0.09 μJ/cm2, Vr=33.7 V, Rd=20.3 V/s.