食品安全质量检测学报
食品安全質量檢測學報
식품안전질량검측학보
FOOD SAFETY AND QUALITY DETECTION TECHNOLOGY
2014年
10期
3035-3041
,共7页
夏璐%张博涵%龚铸%邓啟敏
夏璐%張博涵%龔鑄%鄧啟敏
하로%장박함%공주%산계민
重金属离子%吸附%蔗渣纤维素%端氨基超支化%改性
重金屬離子%吸附%蔗渣纖維素%耑氨基超支化%改性
중금속리자%흡부%자사섬유소%단안기초지화%개성
heavy metal ions%adsorption%bagasse cellulose%amino-termination%hyperbranch
在重金属污染日益严重的今天,重金属污染的治理已经越来越受到广泛的关注。纤维素分子含有大量的羟基,但天然纤维素吸附能力并不好,通过化学改性后可成为性能良好的吸附剂。纤维素无污染、易生物降解、且来源广泛价格低廉,对其研究已成为该领域的热点,并已被广泛应用于重金属污染治理领域。超支化聚合物大分子作为一类制备工艺并不繁琐且容易得到树状高分子聚合物,其最大特点就是准球形的分子结构及末端官能团的可控性,其研究愈加受到关注。本文在文献综述的基础上,提出合成一种含有端氨基超支化合物结构的蔗渣改性重金属吸附剂的可行性技术设想。
在重金屬汙染日益嚴重的今天,重金屬汙染的治理已經越來越受到廣汎的關註。纖維素分子含有大量的羥基,但天然纖維素吸附能力併不好,通過化學改性後可成為性能良好的吸附劑。纖維素無汙染、易生物降解、且來源廣汎價格低廉,對其研究已成為該領域的熱點,併已被廣汎應用于重金屬汙染治理領域。超支化聚閤物大分子作為一類製備工藝併不繁瑣且容易得到樹狀高分子聚閤物,其最大特點就是準毬形的分子結構及末耑官能糰的可控性,其研究愈加受到關註。本文在文獻綜述的基礎上,提齣閤成一種含有耑氨基超支化閤物結構的蔗渣改性重金屬吸附劑的可行性技術設想。
재중금속오염일익엄중적금천,중금속오염적치리이경월래월수도엄범적관주。섬유소분자함유대량적간기,단천연섬유소흡부능력병불호,통과화학개성후가성위성능량호적흡부제。섬유소무오염、역생물강해、차래원엄범개격저렴,대기연구이성위해영역적열점,병이피엄범응용우중금속오염치리영역。초지화취합물대분자작위일류제비공예병불번쇄차용역득도수상고분자취합물,기최대특점취시준구형적분자결구급말단관능단적가공성,기연구유가수도관주。본문재문헌종술적기출상,제출합성일충함유단안기초지화합물결구적자사개성중금속흡부제적가행성기술설상。
On account of the pollution problems caused by heavy metals becoming more and more serious, the technology of heavy metal treatment has received more and more attentions in nowadays. As an effective adsorbent, cellulosic materials were largely developed on industrial purpose being abundant in hydroxyl groups, but the adsorption ability of natural cellulose was still unsatisfactory for its large numbers of internal and in-teractive hydrogen bonds. Therefore, some modifications should be taken on the surface of cellulose molecular. Because of its unique properties of non-polluting, easily degradable, facile available, and low-cost, modified cellulose as heavy metal absorbent has already been intensively applied in separating and extracting of heavy metal ions from aqueous solution in this decade. Known as a type of dendritic polymers, the preparation processes of hyperbranched polymers are simple, and its torispherical molecular structure and terminal func-tional groups are controllable. Hence, the technology and development of these hyperbranched polymers are becoming more and more popular to current researchers. This paper reviewed the progress and proposed a feasible idea on synthesis of a containing amino terminated hyperbranched polymer structure of bagasse mod-ification of heavy metal adsorbent.