CN115557779A - 一种全天候自清洁蓄光陶瓷及其制备方法 - Google Patents

一种全天候自清洁蓄光陶瓷及其制备方法 Download PDF

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CN115557779A
CN115557779A CN202211294080.7A CN202211294080A CN115557779A CN 115557779 A CN115557779 A CN 115557779A CN 202211294080 A CN202211294080 A CN 202211294080A CN 115557779 A CN115557779 A CN 115557779A
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赵超
冯英俊
陈跃
彭江龙
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Suzhou Zhangchi Photoelectric Technology Co ltd
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Abstract

本发明公开了一种全天候自清洁蓄光陶瓷及其制备方法,包括以下步骤:S01:称量,以原料粉体总质量为100%计,分别称取质量百分比为40%~45%的10~30目的石英原料、35%~39%的50~100目的石英原料、5%~20%的150~250目的石英原料,其余为光致发光材料的原料粉体;S02:混料,将S01称量的粉体原料置于球磨罐内,同时加入磨球和去离子水进行球磨混合;S03:成型,将S02球磨后的浆料进行真空除泡处理,然后将除泡后的浆料注入模具中成型,得到素坯;S04:干燥,将S03得到的素坯静置6~13小时后进行脱模,然后置于干燥箱内干燥,本发明所涉及的陶瓷,能够实现净化空气以及自清洁。

Description

一种全天候自清洁蓄光陶瓷及其制备方法
技术领域
本发明属于陶瓷领域技术领域,尤其涉及一种全天候自清洁蓄光陶瓷及其制备方法。
背景技术
蓄光材料又称长余辉材料,是一种在激发光(可见光、紫外光)撤去以后仍可以长效发光的一种发光材料,其中典型代表包括SrAl2O4:Eu2+,Dy3+(黄绿色)、Sr2MgSi2O7:Eu2+,Dy3+(蓝色)等,因其具有稳定的持久自发光特点,近年来基于该材料的应用领域也在不断地拓展;光催化材料是指通过该材料、在光的作用下发生的光化学反应所需的一类半导体催化剂材料,世界上能作为光催化材料的有很多,包括二氧化钛、氧化锌、氧化锡、二氧化锆、硫化镉等多种氧化物硫化物半导体,其中二氧化钛(Titanium Dioxide)因其氧化能力强,化学性质稳定无毒,成为世界上最当红的纳米光触媒材料。
石英陶瓷由于具有较高的耐酸碱侵蚀性能和抗热震性,此外热膨胀系数低,体积稳定性好等优势,常常被选作复合材料的基质相。近年来研究人员也在不断地尝试将蓄光材料与陶瓷基体复合开发出一种蓄光陶瓷,该类陶瓷在保证陶瓷体本身硬度高、耐磨性强、使用寿命长的同时也拓宽了其功能性,可适用于消防救援,应急通道等。
目前已有的蓄光类陶瓷并没有净化空气以及自清洁的作用,如中国专利文献“一种具有超高亮度的蓄光型复相陶瓷材料及其制备方法”(CN201910587392.9)中仅仅提出了一种高亮度的蓄光型陶瓷,并没有提到基于蓄光陶瓷实现全天候自清洁的作用,再如:“一种消防指示用多色系蓄光陶瓷及其制备方法”(CN201910587345.4)中虽有提到采用不同基质的蓄光材料开发出一种蓄光陶瓷,但也仅限于消防指示并没体现净化空气自清洁的作用。
发明内容
本发明实施例的目的在于提供一种全天候自清洁蓄光陶瓷及其制备方法,旨在解决背景技术中确定的现有技术存在的问题。
本发明实施例是这样实现的,一种全天候自清洁蓄光陶瓷及其制备方法,所述方法包括以下步骤:
S01:称量,以原料粉体总质量为100%计,分别称取质量百分比为40%~45%的10~30目的石英原料、35%~39%的50~100目的石英原料、5%~20%的150~250目的石英原料,其余为光致发光材料的原料粉体;
S02:混料,将S01称量的粉体原料置于球磨罐内,同时加入磨球和去离子水进行球磨混合;
S03:成型,将S02球磨后的浆料进行真空除泡处理,然后将除泡后的浆料注入模具中成型,得到素坯;
S04:干燥,将S03得到的素坯静置6~13小时后进行脱模,然后置于干燥箱内干燥;
S05:烧结,将S04干燥后的素坯在还原气氛下进行高温煅烧,煅烧温度为750~1150℃,保温时间为2.5~5.5h,随后随炉冷却至室温,即得到蓄光陶瓷基体;
S06:喷涂,将S05烧结后的蓄光陶瓷基体待自然冷却后转移到喷涂机平台,利用喷涂机将核壳纳米TiO2溶液均匀喷涂在蓄光陶瓷体的表面;
S07:烘烤,将S07喷涂后得到的蓄光陶瓷体转移到烤箱中,设置烤箱温度为40-80℃进行烘烤1-3小时,最终自然冷却得到全天候自清洁蓄光陶瓷。
优选地,所述原料粉体包括SrAl2O4:Eu2+,Dy3+或Sr2MgSi2O7:Eu2+,Dy3+。
优选地,在所述S06中所述的核壳纳米TiO2包括由SiO2包覆的TiO2纳米级光催化材料,其采用下列方法所制得:
将P25型TiO2经过水热法包裹有机物层,得到TiO2@C;
利用溶胶凝胶法再包裹一层硅层得到TiO2@C@SiO2;
对TiO2@C@SiO2进行煅烧除去有机物,最终得到核壳TiO2纳米光催化材料。优选地,在S02中,所述球磨的转速为150~320r/min,球磨时间为7~14h。
优选地,所述真空除泡的真空度为-10~-30kpa,除泡时间为30~50min。
优选地,所述SrAl2O4:Eu2+,Dy3+的原料粉体为SrCO3、Al2O3、Eu2O3和Dy2O3,所述Sr2MgSi2O7:Eu2+,Dy3+的原料粉体为SrCO3、H2SiO3、4MgCO3Mg(OH)25H2O、Eu2O3和Dy2O3,根据化学式SrAl2O4:Eu2+,Dy3+中各元素的化学计量比称量、混合再经高温固相法烧汁而成得到。
优选地,核壳TiO2纳米光催化材料的吸收光谱为全光谱吸收。
一种全天候自清洁蓄光陶瓷,采用上述任一所述的制备方法所制得。
本发明实施例提供的一种全天候自清洁蓄光陶瓷及其制备方法,采用了全天候自清洁蓄光陶瓷及其制备方法,解决了目前已有的蓄光类陶瓷并没有在技术上实现净化空气以及自清洁的技术问题,进而实现了以陶瓷为基体的净化空气以及杀菌的功能陶瓷;解决了传统P25型TiO2颗粒吸收峰过窄的问题,进而实现了蓄光陶瓷全光谱吸收,即可吸收太阳光释放强氧化性也可吸收长余辉材料的余辉释放强氧化性最终实现净化空气和杀菌;采用了全天候自清洁蓄光陶瓷及其制备方法,所以实现了在保证蓄光陶瓷美观可靠的同时,也实现了蓄光陶瓷的功能性,同时工艺简单便于产业化与规模化。
附图说明
图1为本发明实施例提供的一种全天候自清洁蓄光陶瓷及其制备方法中核壳包覆的纳米TiO2光催化颗粒SEM图一
图2为本发明实施例提供的一种全天候自清洁蓄光陶瓷及其制备方法中核壳包覆的纳米TiO2光催化颗粒SEM图二;
图3为本发明实施例提供的P25型TiO2与核壳包覆的纳米TiO2的吸收光谱图;
图4本发明实施例提供的净化空气的效率图;
图5本发明实施例提供的杀菌效果图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
以下结合具体实施例对本发明的具体实现进行详细描述。
本申请采用了全天候自清洁蓄光陶瓷及其制备方法,有效解决了目前已有的蓄光类陶瓷并没有在技术上实现净化空气以及自清洁的技术问题,进而实现了以陶瓷为基体的净化空气以及杀菌的功能陶瓷。同时由于采用核壳包覆TiO2的方法,有效解决了传统P25型TiO2颗粒吸收峰过窄的问题,进而实现了蓄光陶瓷全光谱吸收,即可吸收太阳光释放强氧化性也可吸收长余辉材料的余晖释放强氧化性最终实现净化空气和杀菌。实现了在保证蓄光陶瓷美观可靠的同时,也实现了蓄光陶瓷的功能性,同时工艺简单便于产业化与规模化。
为本发明的一个实施例提供的一种全天候自清洁蓄光陶瓷及其制备方法的结构图,包括:
所述方法包括以下步骤:
S01:称量,以原料粉体总质量为100%计,分别称取质量百分比为40%~45%的10~30目的石英原料、35%~39%的50~100目的石英原料、5%~20%的150~250目的石英原料,其余为光致发光材料的原料粉体;
S02:混料,将S01称量的粉体原料置于球磨罐内,同时加入磨球和去离子水进行球磨混合;
S03:成型,将S02球磨后的浆料进行真空除泡处理,然后将除泡后的浆料注入模具中成型,得到素坯;
S04:干燥,将S03得到的素坯静置6~13小时后进行脱模,然后置于干燥箱内干燥;
S05:烧结,将S04干燥后的素坯在还原气氛下进行高温煅烧,煅烧温度为750~1150℃,保温时间为2.5~5.5h,随后随炉冷却至室温,即得到蓄光陶瓷基体;
S06:喷涂,将S05烧结后的蓄光陶瓷基体待自然冷却后转移到喷涂机平台,利用喷涂机将核壳纳米TiO2溶液均匀喷涂在蓄光陶瓷体的表面;
S07:烘烤,将S07喷涂后得到的蓄光陶瓷体转移到烤箱中,设置烤箱温度为40-80℃进行烘烤1-3小时,最终自然冷却得到全天候自清洁蓄光陶瓷。
作为本发明的一种优选实施例,所述原料粉体包括SrAl2O4:Eu2+,Dy3+或Sr2MgSi2O7:Eu2+,Dy3+,即将稀土离子掺杂入SrAl2O4或Sr2MgSi2O7中。
作为本发明的另一种优选实施例,在所述S06中所述的核壳纳米TiO2包括由SiO2包覆的TiO2纳米级光催化材料,其采用下列方法所制得:
将P25型TiO2经过水热法包裹有机物层,得到TiO2@C;
利用溶胶凝胶法再包裹一层硅层得到TiO2@C@SiO2;
对TiO2@C@SiO2进行煅烧除去有机物,最终得到核壳TiO2纳米光催化材料。
作为本发明的另一种优选实施例,在S02中,所述球磨的转速为150~320r/min,球磨时间为7~14h。
所述真空除泡的真空度为-10~-30kpa,除泡时间为30~50min。
作为本发明的另一种优选实施例,所述SrAl2O4:Eu2+,Dy3+的原料粉体为SrCO3、Al2O3、Eu2O3和Dy2O3,所述Sr2MgSi2O7:Eu2+,Dy3+的原料粉体为SrCO3、H2SiO3、4MgCO3Mg(OH)25H2O、Eu2O3和Dy2O3,根据化学式SrAl2O4:Eu2+,Dy3+中各元素的化学计量比称量、混合再经高温固相法烧汁而成得到。
作为本发明的另一种优选实施例,核壳TiO2纳米光催化材料的吸收光谱为全光谱吸收。
一种全天候自清洁蓄光陶瓷,采用上述任一所述的制备方法所制得。
实施例1
一种全天候自清洁蓄光陶瓷及其制备方法,方法如下:
(1)以原料粉体总质量为100%计,分别称取质量百分比为40%的25目的石英原料、35%的60目的石英原料、10%的200目的石英原料,其余为SrAl2O4:Eu2+,Dy3+长余辉材料的原料粉体;
(2)将步骤(1)称量的粉体原料置于球磨罐内,同时加入磨球和去离子水进行球磨混合,球磨的转速为180r/min,球磨时间为10h。;
(3)将步骤(2)球磨后的浆料进行真空除泡处理,然后将除泡后的浆料注入模具中成型,真空度为-15kpa,除泡时间为40min,得到素坯;
(4)将步骤(3)得到的素坯静置7小时后进行脱模,然后置于干燥箱内干燥;
(5)将步骤(4)干燥后的素坯在还原气氛下进行高温煅烧,煅烧温度为900℃,保温时间为3.5h,随后随炉冷却至室温,即得到蓄光陶瓷基体;
(6)将步骤(5)烧结后的蓄光陶瓷基体待自然冷却后转移到喷涂机平台,利用喷涂机将核壳纳米TiO2溶液均匀喷涂在蓄光陶瓷体的表面。
(7)将步骤(6)喷涂后得到的蓄光陶瓷体转移到烤箱中,设置烤箱温度为60℃进行烘烤1.5小时,最终自然冷却得到全天候自清洁蓄光陶瓷。
上述本申请实施例中的技术方案,至少具有如下的技术效果或优点:
如图1和图2,本实施例制备的核壳包覆的TiO2经扫描电子显微镜图像,SEM图像显示,核壳包覆的TiO2纳米光催化颗粒成功制备,在球状TiO2外成功包覆了一层SiO2;
如图3,本实施例制备的核壳包覆的TiO2即TiO2@SiO2光催化颗粒与传统的P25型TiO2的吸收光谱对比图,其中明显可以观察到P25型TiO2的吸收光谱仅为窄光谱,而核壳包覆的TiO2的吸收光谱为全光谱,为制备全天候自清洁蓄光陶瓷提供了材料保障。
如图4,本实施例制备的全天候自清洁蓄光陶瓷净化空气中杂质的效率,在100分钟内可完成净化60%以上。
如图5,本实施例制备的全天候自清洁蓄光陶瓷的杀菌效果图,白天为97.33%,暗环境下为33.5%。
实施例2
一种全天候自清洁蓄光陶瓷及其制备方法,方法如下:
(1)以原料粉体总质量为100%计,分别称取质量百分比为42%的25目的石英原料、38%的60目的石英原料、8%的200目的石英原料,其余为Sr2MgSi2O7:Eu2+,Dy3+长余辉材料的原料粉体;
(2)将步骤(1)称量的粉体原料置于球磨罐内,同时加入磨球和去离子水进行球磨混合,球磨的转速为200r/min,球磨时间为11h。;
(3)将步骤(2)球磨后的浆料进行真空除泡处理,然后将除泡后的浆料注入模具中成型,真空度为-20kpa,除泡时间为50min得到素坯;
(4)将步骤(3)得到的素坯静置6小时后进行脱模,然后置于干燥箱内干燥,;
(5)将步骤(4)干燥后的素坯在还原气氛下进行高温煅烧,煅烧温度为200℃,保温时间为3.5h,随后随炉冷却至室温,即得到蓄光陶瓷基体。
(6)将步骤(5)烧结后的蓄光陶瓷基体待自然冷却后转移到喷涂机平台,利用喷涂机将核壳纳米TiO2溶液均匀喷涂在蓄光陶瓷体的表面。
(7)将步骤(6)喷涂后得到的蓄光陶瓷体转移到烤箱中,设置烤箱温度为70℃进行烘烤2.5小时,最终自然冷却得到全天候自清洁蓄光陶瓷。
上述本申请实施例中的技术方案,至少具有如下的技术效果或优点:
经过观测,本实施例2中所制备得到可自发光的石英陶瓷材料的主要结构性能,机械发光光谱与实施例1相似。
本发明上述实施例中提供了一种全天候自清洁蓄光陶瓷及其制备方法,采用了全天候自清洁蓄光陶瓷及其制备方法,所以有效解决了目前已有的蓄光类陶瓷并没有在技术上实现净化空气以及自清洁的技术问题,进而实现了以陶瓷为基体的净化空气以及杀菌的功能陶瓷。同时由于采用核壳包覆TiO2的方法,有效解决了传统P25型TiO2颗粒吸收峰过窄的问题,进而实现了蓄光陶瓷全光谱吸收,即可吸收太阳光释放强氧化性也可吸收长余辉材料的余晖释放强氧化性最终实现净化空气和杀菌。实现了在保证蓄光陶瓷美观可靠的同时,也实现了蓄光陶瓷的功能性,同时工艺简单便于产业化与规模化。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。

Claims (8)

1.一种全天候自清洁蓄光陶瓷的制备方法,其特征在于,所述方法包括以下步骤:
S01:称量,以原料粉体总质量为100%计,分别称取质量百分比为40%~45%的10~30目的石英原料、35%~39%的50~100目的石英原料、5%~20%的150~250目的石英原料,其余为光致发光材料的原料粉体;
S02:混料,将S01称量的粉体原料置于球磨罐内,同时加入磨球和去离子水进行球磨混合;
S03:成型,将S02球磨后的浆料进行真空除泡处理,然后将除泡后的浆料注入模具中成型,得到素坯;
S04:干燥,将S03得到的素坯静置6~13小时后进行脱模,然后置于干燥箱内干燥;
S05:烧结,将S04干燥后的素坯在还原气氛下进行高温煅烧,煅烧温度为750~1150℃,保温时间为2.5~5.5h,随后随炉冷却至室温,即得到蓄光陶瓷基体;
S06:喷涂,将S05烧结后的蓄光陶瓷基体待自然冷却后转移到喷涂机平台,利用喷涂机将核壳纳米TiO2溶液均匀喷涂在蓄光陶瓷体的表面;
S07:烘烤,将S07喷涂后得到的蓄光陶瓷体转移到烤箱中,设置烤箱温度为40-80℃进行烘烤1-3小时,最终自然冷却得到全天候自清洁蓄光陶瓷。
2.根据权利要求1所述的全天候自清洁蓄光陶瓷的制备方法,其特征在于,所述原料粉体包括SrAl2O4:Eu2+,Dy3+或Sr2MgSi2O7:Eu2+,Dy3+。
3.根据权利要求1所述的全天候自清洁蓄光陶瓷的制备方法,其特征在于,在所述S06中所述的核壳纳米TiO2包括由SiO2包覆的TiO2纳米级光催化材料,其采用下列方法所制得:
将P25型TiO2经过水热法包裹有机物层,得到TiO2@C;
利用溶胶凝胶法再包裹一层硅层得到TiO2@C@SiO2;
对TiO2@C@SiO2进行煅烧除去有机物,最终得到核壳TiO2纳米光催化材料。
4.根据权利要求1所述的全天候自清洁蓄光陶瓷的制备方法,其特征在于,在S02中,所述球磨的转速为150~320r/min,球磨时间为7~14h。
5.根据权利要求1-4任一所述的全天候自清洁蓄光陶瓷的制备方法,其特征在于,所述真空除泡的真空度为-10~-30kpa,除泡时间为30~50min。
6.根据权利要求2所述的全天候自清洁蓄光陶瓷的制备方法,其特征在于,所述SrAl2O4:Eu2+,Dy3+的原料粉体为SrCO3、Al2O3、Eu2O3和Dy2O3,所述Sr2MgSi2O7:Eu2+,Dy3+的原料粉体为SrCO3、H2SiO3、4MgCO3Mg(OH)25H2O、Eu2O3和Dy2O3,根据化学式SrAl2O4:Eu2+,Dy3+中各元素的化学计量比称量、混合再经高温固相法烧汁而成得到。
7.根据权利要求1或3所述的全天候自清洁蓄光陶瓷的制备方法,其特征在于,核壳TiO2纳米光催化材料的吸收光谱为全光谱吸收。
8.一种全天候自清洁蓄光陶瓷,其特征在于,采用如权利要求1-9任一所述的制备方法所制得。
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